[Code of Federal Regulations]
[Title 26, Volume 1]
[Revised as of April 1, 2003]
From the U.S. Government Printing Office via GPO Access
[CITE: 26CFR1.48-9]

[Page 350-366]
 
                       TITLE 26--INTERNAL REVENUE
 
     CHAPTER I--INTERNAL REVENUE SERVICE, DEPARTMENT OF THE TREASURY
 
PART 1--INCOME TAXES--Table of Contents
 
Sec. 1.48-9  Definition of energy property.

    (a) General rule--(1) In general. Under section 48(l)(2), energy 
property means property that is described in at least one of 6 
categories of energy property and that meets the other requirements of 
this section. If property is described in more than one of these 
categories, or is described more than once in a single category, only a 
single energy investment credit is allowed. In that case, the energy 
investment credit will be allowed under the category the taxpayer 
chooses by indicating the chosen category on Form 3468, Schedule B. The 
6 categories of energy property are:
    (i) Alternative energy property,
    (ii) Solar or wind energy property,
    (iii) Specially defined energy property,
    (iv) Recycling equipment,
    (v) Shale oil equipment, and
    (vi) Equipment for producing natural gas from geopressured brine.
    (2) Depreciable property with 3-year useful life. Property is not 
energy property unless depreciation (or amortization in lieu of 
depreciation) is allowable and the property has an estimated useful life 
(determined at the time when the property is placed in service) of 3 
years or more.
    (3) Effective date rules. To be energy property--
    (i) If property is constructed, reconstructed or erected by the 
taxpayer, the construction, reconstruction, or erection must be 
completed after September 30, 1978, or
    (ii) If the property is acquired, the original use of the property 
must (A) commence with the taxpayer and (B) commence after September 30, 
1978, and before January 1, 1983.

For transitional rules, see section 48(m).
    (4) Cross references. (i) To determine if depreciation (or 
amortization in lieu of depreciation) is allowable for property, see 
Sec. 1.48-1(b).
    (ii) For the meaning of ``estimated useful life'', see Sec. 1.46-
3(e)(7).
    (iii) The meaning of ``acquired'', ``original use'', 
``construction'', ``reconstruction'', and ``erection'' is determined 
under the principles of Sec. 1.48-2(b).
    (iv) For the definition of energy investment credit (energy credit), 
see section 48(o)(2).
    (v) For special rules relating to public utility property, see 
paragraph (n) of this section.
    (b) Relationship to section 38 property--(1) In general. (i) Energy 
property is treated under section 48(l)(1) as meeting the general 
requirements for section 38 property set forth in section 48(a)(1). For 
example, structural components of a building may qualify for the energy 
credit. In addition, the exclusion from section 38 property under 
section 48(a)(3) (lodging limitation) does not apply to energy property. 
For purposes of the energy credit, energy property is treated as section 
38 property solely by reason of section 48(l)(1). For example, if 
property ceases to be energy property, it ceases to be section 38 
property for all purposes relating to the energy credit and, thus, if 
subject to recapture under section 47. See Sec. 1.47-1(h).
    (ii) See the effective date rules under paragraph (a)(3) of this 
section for limitations on the eligibility of property as energy 
property.
    (iii) Section 48(l)(1) does not affect the character of property 
under sections of the Code outside the investment credit provisions. For 
example, structural components of a building that are treated as section 
38 property under section 48(l)(1) remain section 1250 property and are 
not section 1245 property.
    (2) Other section 48 rules apply. (i) In general, section 48(a) 
otherwise applies in determining if energy property is section 38 
property. Thus, energy property excluded from the definition of section 
38 property under section 48(a) (except by reason of section 48(a)(1) or 
(a)(3)) is not eligible for the energy credit. For example, energy 
property used predominantly outside the United States (section 48(a)(2)) 
or used by tax exempt organizations (section 48(a)(4)), in general, is 
not treated as section 38 property for any purpose and thus, is not 
eligible for the energy credit.
    (ii) Other rules of section 48, such as those for leased property 
under section 48(d), also apply to energy property.
    (3) Regular credit denied for certain energy property. In computing 
the amount

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of credit under section 46(a)(2), the regular percentage does not apply 
to any energy property which, but for section 48(l)(1), would not be 
section 38 property. See section 46(a)(2)(D). For example, energy 
property used for lodging (section 48(a)(3)) and, in general, structural 
components of a building (section 48(a)(1)(B)) re not eligible for the 
regular credit even though they may be eligible for the energy credit. 
However, a structural component of a qualified rehabilitated building 
(as defined in section 48(g)(1)) or a single purpose agricultural or 
horticultural structure (as defined in section 48(p)) may qualify for 
the regular credit without regard to section 48(l)(1).
    (c) Alternative energy property--(1) In general. Alternative energy 
property means property described in paragraphs (c)(3) through (10) of 
this section. In general alternative energy property includes certain 
property that uses an alternate substance as a fuel or feedstock or 
converts an alternate substance to a synthetic fuel and certain 
associated equipment.
    (2) Alternate substance. (i) An alternate substance is any substance 
or combination of substances other than an oil or gas substance. 
Alternate substances include coal, wood, and agricultural, industrial, 
and municipal wastes or by-products. Alternate substances do not include 
synthetic fuels or other products that are produced from an alternate 
substance and that have undergone a chemical change as described in 
paragraph (c)(5)(ii) of this section. For example, methane produced from 
landfills is not an alternate substance; rather it is a synthetic fuel 
produced from an alternate substance. However, preparing an alternate 
substance for use as a fuel or feedstock or for conversion into a fuel 
does not create a new product if no chemical change occurs. For example, 
pelletizing, drying, compacting, and liquefying do not result in a new 
product if no chemical change occurs.
    (ii) The term ``oil or gas substance'' means--
    (A) Oil or gas and
    (B) Any primary product of oil or gas.
    (iii) For the definition of primary product of oil or gas, see 
Sec. 1.993-3(g)(3)(i), (ii), and (vi). Thus, petrochemicals are not 
primary products of oil or gas.
    (3) Boiler. (i) A boiler that uses an alternate substance as its 
primary fuel is alternative energy property.
    (ii) A boiler is a device for producing vapor from a liquid. 
Boilers, in general, have a burner in which fuel is burned. A boiler 
includes a fire box, boiler tubes, the containment shell, pumps, 
pressure and operating controls, and safety equipment, but not pollution 
control equipment (as defined in paragraph (c)(8) of this section).
    (iii) A ``primary fuel'' is a fuel comprising more than 50 percent 
of the fuel requirement of an item of equipment, measured in terms of 
Btu's for the remainder of the taxable year from the date the equipment 
is placed in service and for each taxable year thereafter. Electricity 
and waste heat are not fuels. For example, electric boilers do not 
qualify as alternative energy property even if the electricity is 
derived from an alternate substance.
    (4) Burners. (i) A burner for a combustor other than a burner 
described in paragraph (c)(3)(ii) of this section is alternative energy 
property if the burner uses an alternate substance as its primary fuel 
(as defined in paragraph (c)(3)(iii) of this section).
    (ii) A burner is the part of a combustor that produces a flame. A 
combustor is a process heater which includes ovens, kilns, and furnaces.
    (iii) A burner includes equipment (such as conveyors, flame control 
devices, and safety monitoring devices) located at the site of the 
burner and necessary to bring the alternate substance to the burner.
    (5) Synthetic fuel production equipment. (i) Equipment (synthetic 
fuel equipment) that converts an alternate substance into a synthetic 
solid, liquid, or gaseous fuel (other than coke or coke gas) is 
alternative energy property. Synthetic fuel production equipment does 
not include equipment, such as an oxygen plant, that is not directly 
involved in the treatment of an alternate substance, but produces a 
substance that is, like the alternate substance, a basic feedstock or 
catalyst used in the conversion process. Equipment is not eligible if it 
is used beyond the point at

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which a substance usable as a fuel has been produced. Equipment is 
eligible only to the extent of the equipment's cost or basis allocable 
to the annual production of substances used as a fuel or used in the 
production of a fuel. For example, assume for the taxable year that 50 
percent of the output of equipment is used to produce alcohol for 
production of whiskey and 50 percent is used to produce alcohol for use 
in a fuel mixture, such as gasohol. The alcohol production equipment 
qualifies as synthetic fuel equipment but only to the extent of one-half 
of its cost or basis. If, in a later taxable year, the equipment is used 
exclusively to produce whiskey, all of the equipment ceases to be 
synthetic fuel equipment.
    (ii) A fuel is a material that produces usable heat upon combustion. 
To be ``synthetic'', the fuel either must differ significantly in 
chemical composition, as opposed to physical composition, from the 
alternate substance used to produce it or, in the case of solid fuel 
produced from biomass, the chemical change must consist of 
defiberization. Examples of synthetic fuels include alcohol derived from 
coal, peat, and vegetative matter, such as wood and corn, and methane 
from landfills.
    (iii) Synthetic fuel equipment includes coal gasification equipment, 
coal liquefaction equipment, equipment for recovering methane from 
landfill, and equipment that converts biomass to a synthetic fuel.
    (iv) Synthetic fuel equipment does not include equipment that merely 
mixes an alternate substance with another substance. For example, 
synthetic fuel equipment includes neither equipment that mixes coal and 
water to produce a slurry nor equipment that mixes alcohol and gasoline 
to produce gasohol. Equipment used to produce coke or coke gas, such as 
coke ovens, is also ineligible.
    (6) Modification equipment. (i) Alternative energy property includes 
equipment (modification equipment) designed to modify existing 
equipment. For the definition of ``existing,'' see paragraph (l)(1)(i) 
of this section. To be eligible, the modification must result in a 
substitution for the remainder of the taxable year from the date the 
equipment is placed in service and for each taxable year thereafter of 
the items in paragraph (c)(6)(ii)(A) or (B) of this section for all or a 
portion of the oil or gas substance used as a fuel or feedstock. As a 
result of the modification, the substituted alternate substance must 
comprise at least 25 percent of the fuel or feedstock (determined on the 
basis of Btu equivalency). If the modification also increases the 
capacity of the equipment, only the incremental cost (as defined in 
paragraph (k) of this section) of the equipment qualifies.
    (ii) The substitutes for an oil or gas substance are--
    (A) An alternate substance or
    (B) A mixture of oil and an alternate substance.
    (iii) Modification equipment does not include replacements or a 
boiler of burner. If the boiler or burner is replaced, the items must be 
described in paragraph (c) (3) or (4) of this section to qualify as 
alternative energy property. Modification may include, however, 
replacements of components of a boiler or burner, such as a heat 
exchanger.
    (iv) The following examples illustrate this paragraph (c)(6).

    Example 1. On January 1, 1980, corporation X is using oil to fuel 
its boiler. On June 1, 1980, X modifies the boiler to permit 
substitution of a coal and oil mixture for 40 percent of X's oil fuel 
needs. The mixture consists 75 percent of oil and 25 percent of coal. 
The equipment modifying the boiler does not qualify as modification 
equipment because the alternate substance comprises only 10 percent of 
the fuel.
    Example 2. Assume the same facts as in example 1 except 75 percent 
of the mixture is coal. The equipment modifying the boiler qualifies.
    Example 3. Assume the same facts as in example 2 except, instead of 
substituting an oil and coal mixture for 40 percent of X's oil fuel 
needs, X uses the modification to expand the boiler's fuel capacity by 
40 percent using the mixture as additional fuel. The additional fuel 
mixture comprises only 28 percent of X's total fuel needs. Thus, even 
though 75 percent of the additional fuel mixture is an alternate 
substance, the boiler does not qualify as modification equipment because 
the alternate substance comprises only 21 percent of the total fuel.

    (7) Equipment using coal as feedstock. Equipment that uses coal 
(including lignite) to produce a feedstock for the

[[Page 353]]

manufacture of chemicals, such as petrochemicals, or other products is 
alternative energy property. Equipment is not eligible if it is not 
directly involved in the treatment of coal or a coal product, but 
produces a substance that is, like coal, a basic feedstock or catalyst 
used in the coal conversion process. Equipment is not eligible if it is 
used beyond the point at which the first product marketable as a 
feedstock has been produced. Equipment used to produce coke or coke gas, 
such as coke ovens, is ineligible.
    (8) Pollution control equipment. (i) Pollution control equipment is 
alternative energy property. Eligible equipment is limited to property 
or equipment to the extent it qualifies as a pollution control facility 
under section 103(b)(4)(F) and the regulations thereunder except that, 
if control of pollution is not the only significant purpose (within the 
meaning of those regulations), only the incremental cost (as defined in 
paragraph (k) of this section) of the equipment qualifies. However, if a 
Treasury decision changes the regulations under section 103(b)(4)(F) 
and, thus, the rules reflected in this subdivision (i), the rules as 
changed will apply as of the effective date of the Treasury decision.
    (ii) To be eligible, the equipment must be required by a Federal, 
State, or local government regulation to be installed on, or used in 
connection with, eligible alternative energy property (as defined in 
paragraph (c)(8)(v) of this section).
    (iii) Under section 48(l)(3)(D) equipment is not eligible if 
required by a Federal, State, or local government regulation in effect 
on October 1, 1978, to be installed on, or in connection with, property 
using coal (including lignite) as of October 1, 1978.
    (iv) Under this subparagraph (8), pollution control equipment is 
required by regulation if it would be necessary to install the equipment 
to satisfy the requirements of any applicable law, including nuisance 
law. The pollution control equipment need not be specifically identified 
in the applicable law. If several different types of equipment may be 
used to comply with the applicable law, each type of equipment is 
considered necessary to satisfy the requirements of the law. An order 
permitting a taxpayer to delay compliance with any applicable law is 
disregarded.
    (v) Under this subparagraph (8) ``eligible alternative energy 
property'' is energy property (as defined in section 48 (l)(2)) 
described in paragraphs (c) (3) through (7) of this section. If 
equipment otherwise qualifying as pollution control equipment is 
installed on, or used in connection with, both eligible alternative 
energy property and property other than eligible alternative energy 
property, only the incremental cost (as defined in paragraph (k) of this 
section) of the equipment qualifies.
    (vi) Examples. The following examples illustrate this subparagraph 
(8). Assume that the property or equipment in the examples are described 
in Sec. 1.103-8(g)(2)(ii) and that their only purpose is control of 
pollution.

    Example 1. On October 1, 1978, corporation X acquires and places in 
service in State A a paper mill. The facility includes a boiler the 
primary fuel for which is wood chips. The facility includes equipment 
necessary to comply with pollution control standards in effect on 
October 1, 1978 in State A. This equipment qualifies as pollution 
control equipment.
    Example 2. On October 1, 1978, corporation Y was burning coal at its 
facility in State B. The emissions from the facility exceeded State air 
pollution control requirements in effect on October 1, 1978. On January 
1, 1979, X installed cyclone separators to comply with the State 
pollution control requirements. The cyclone separators do not qualify as 
pollution control equipment.
    Example 3. Assume the same facts as in example 2 except that Y 
installs a baghouse instead of cyclone separators to meet more stringent 
standards that take effect on December 31, 1978. The baghouse qualifies 
as pollution control equipment because the baghouse was not necessary to 
meet the standards in effect on October 1, 1978.
    Example 4. On October 1, 1978, corporation Z is burning coal at its 
facility in State C. The emissions from that facility exceed State air 
pollution control standards in effect on October 1, 1978. C orders Z to 
install cyclone separators before January 1, 1979. However, C allows Z 
to operate its facility until January 1, 1979, under less stringent 
interim standards applicable only to Z. The separators do not qualify as 
pollution control equipment. The delayed compliance order is 
disregarded.

    (9) Handling and preparation equipment. (i) Alternative energy 
property

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includes equipment (handling and preparation equipment) used for 
unloading, transfer, storage, reclaiming from storage, or preparation of 
an alternate substance for use in eligible alternative energy property 
(as defined in paragraph (c)(9)(ii) of this section). Handling and 
preparation equipment must be located at the site the alternate 
substance is used as a fuel or feedstock. For example, equipment used to 
screen and prepare coal for use at a power plant qualifies if located at 
the plant. However, similar equipment located at the coal mine would not 
qualify.
    (ii) Under this subparagraph (9), ``eligible alternative energy 
property'' is energy property (as defined in section 48(l)(2)) described 
in paragraphs (c) (3) through (8) of this section. If equipment 
otherwise qualifying as handling and preparation equipment is installed 
on, or used in connection with, property other than eligible alternative 
energy property, only the incremental cost (as defined in paragraph (k) 
of this section) of the equipment qualifies.
    (iii) The term ``preparation'' includes washing, crushing, drying, 
compacting, and weighing of an alternate substance. Handling and 
preparation equipment also includes equipment for shredding, chopping, 
pulverizing, or screening agricultural or forestry byproducts at the 
site of use.
    (iv) Handling and preparation equipment does not include equipment, 
such as coal slurry pipelines and railroad cars, that transports a fuel 
or a feedstock to the site of its use.
    (10) Geothermal equipment--(i) Alternative energy property includes 
equipment (geothermal equipment) that produces, distributes, or uses 
energy derived from a geothermal deposit (as defined in Sec. 1.44C-
2(h)).
    (ii) In general, production equipment includes equipment necessary 
to bring geothermal energy from the subterranean deposit to the surface, 
including well-head and downhole equipment (such as screening or 
slotting liners, tubing, downhole pumps, and associated equipment). 
Reinjection wells required for production also may qualify. Production 
does not include exploration and development.
    (iii) Distribution equipment includes equipment that transports 
geothermal steam or hot water from a geothermal deposit to the site of 
ultimate use. If geothermal energy is used to generate electricity, 
distribution equipment includes equipment that transports hot water from 
the geothermal deposit to a power plant. Distribution equipment also 
includes components of a heating system, such as pipes and ductwork that 
distribute within a building the energy derived from the geothermal 
deposit.
    (iv) Geothermal equipment includes equipment that uses energy 
derived both from a geothermal deposit and from sources other than a 
geothermal deposit (dual use equipment). Such equipment, however, is 
geothermal equipment (A) only if its use of energy from sources other 
than a geothermal deposit does not exceed 25 percent of its total energy 
input in an annual measuring period and (B) only to the extent of its 
basis or cost allocable to its use of energy from a geothermal deposit 
during an annual measuring period. An ``annual measuring period'' for an 
item of dual use equipment is the 365 day period beginning with the day 
it is placed in service or a 365 day period beginning the day after the 
last day of the immediately preceding annual measuring period. The 
allocation of energy use required for purposes of paragraph (c)(10)(iv) 
(A) and (B) of this section may be made by comparing, on a Btu basis, 
energy input to dual use equipment from the geothermal deposit with 
energy input from other sources. However, the Commissioner may accept 
any other method that, in his opinion, accurately establishes the 
relative annual use by dual use equipment of energy derived from a 
geothermal deposit and energy derived from other sources.
    (v) The existence of a backup system designed for use only in the 
event of a failure in the system providing energy derived from a 
geothermal deposit will not disqualify any other equipment. If 
geothermal energy is used to generate electricity, equipment using 
geothermal energy includes the electrical generating equipment, such as 
turbines and generators. However, geothermal equipment does not include 
any electrical transmission equipment, such as transmission lines and 
towers, or any

[[Page 355]]

equipment beyond the electrical transmission stage, such as transformers 
and distribution lines.
    (vi) Examples. The following examples illustrate this subparagraph 
(10):

    Example 1. On October 1, 1979, corporation X, a calendar year 
taxpayer, places in service a system which heats its office building by 
circulating hot water heated by energy derived from a geothermal deposit 
through the building. Geothermal equipment includes the circulation 
system, including the pumps and pipes which circulate the hot water 
through the building.
    Example 2. The facts are the same as in Example 1, except that 
corporation X also places in service a boiler to produce hot water for 
heating the building exclusively in the event of a failure of the 
geothermal equipment. Such a boiler is not geothermal equipment, but the 
existence of such a backup system does not serve to disqualify property 
eligible in Example 1.
    Example 3. The facts are the same as in Example 1, except that the 
water heated by energy derived from a geothermal deposit is not hot 
enough to provide sufficient heat for the building. Therefore, the 
system includes an electric boiler in which the water is heated before 
being circulated in the heating system. Assume that, on a Btu basis, 
eighty percent of the total energy input to the circulating system 
during the 365 day period beginning on October 1, 1979, is energy 
derived from a geothermal deposit. The boiler is not geothermal 
equipment. For the 1979 taxable year, eighty percent of the circulating 
system is geothermal equipment because eighty percent of its basis or 
cost is allocable to use of energy from a geothermal deposit. If, in a 
subsequent taxable year, the basis or cost allocable to use of energy 
from a geothermal deposit falls below eighty percent, recapture may be 
required under section 47 and Sec. 1.47-1(h). Thus, if, on a Btu basis, 
only 70 percent of the total energy input to the circulating system for 
the 365 day period beginning October 1, 1980, is energy derived from a 
geothermal deposit, then there will be complete recapture of the credit 
during the 1980 taxable year. If, however, for that 365 day period, the 
portion of the total energy input that is derived from a geothermal 
deposit is less than 80 percent but greater than or equal to 75 percent, 
then only a proportional amount of credit will be recaptured during the 
1980 taxable year. No additional credit is allowable in a subsequent 
taxable year, however, if the portion of the basis or cost allocable to 
use of energy from a geothermal deposit increases above what it was for 
a previous taxable year (see Sec. 1.46-3(d)(4)(i)).
    Example 4. Corporation Y acquires a commercial vegetable dehydration 
system in 1981. The system operates by placing fresh vegetables on a 
conveyor belt and moving them through a dryer. The conveyor belt is 
powered by electricity. The dryer uses solely energy derived from a 
geothermal deposit. The dryer is geothermal equipment while the 
equipment powered by electricity does not qualify.

    (d) Solar energy property--(1) In general. Energy property includes 
solar energy property. The term ``solar energy property'' includes 
equipment and materials (and parts related to the functioning of such 
equipment) that use solar energy directly to (i) generate electricity, 
(ii) heat or cool a building or structure, or (iii) provide hot water 
for use within a building or structure. Generally, those functions are 
accomplished through the use of equipment such as collectors (to absorb 
sunlight and create hot liquids or air), storage tanks (to store hot 
liquids), rockbeds (to store hot air), thermostats (to activate pumps or 
fans which circulate the hot liquids or air), and heat exchangers (to 
utilize hot liquids or air to create hot air or water). Property that 
uses, as an energy source, fuel or energy derived indirectly from solar 
energy, such as ocean thermal energy, fossil fuel, or wood, is not 
considered solar energy property.
    (2) Passive solar excluded--(i) Solar energy property excludes the 
materials and components of ``passive solar systems,'' even if combined 
with ``active solar systems.''
    (ii) An active solar system is based on the use of mechanically 
forced energy transfer, such as the use of fans or pumps to circulate 
solar generated energy.
    (iii) A passive system is based on the use of conductive, 
convective, or radiant energy transfer. Passive solar property includes 
greenhouses, solariums, roof ponds, glazing, and mass or water trombe 
walls.
    (3) Electric generation equipment. Solar energy property includes 
equipment that uses solar energy to generate electricity, and includes 
storage devices, power conditioning equipment, transfer equipment, and 
parts related to the functioning of those items. In general, this 
process involves the transformation of sunlight into electricity through 
the use of such devices as solar cells or other collectors. However, 
solar energy property used to generate

[[Page 356]]

electricity includes only equipment up to (but not including) the stage 
that transmits or uses electricity.
    (4) Pipes and ducts. Pipes and ducts that are used exclusively to 
carry energy derived from solar energy are solar energy property. Pipes 
and ducts that are used to carry both energy derived from solar energy 
and energy derived from other sources are solar energy property (i) only 
if their use of energy other than solar energy does not exceed 25 
percent of their total energy input in an annual measuring period and 
(ii) only to the extent of their basis or cost allocable to their use of 
solar energy during an annual measuring period. (See paragraph (d)(6) of 
this section for the definition of ``annual measuring period'' and for 
rules relating to the method of allocation.)
    (5) Specially adapted equipment. Equipment that uses solar energy 
beyond the distribution stage is eligible only if specially adapted to 
use solar energy.
    (6) Auxiliary equipment. Solar energy property does not include 
equipment (auxiliary equipment), such as furnaces and hot water heaters, 
that use a source of power other than solar or wind energy to provide 
usable energy. Solar energy property does include equipment, such as 
ducts and hot water tanks, which is utilized by both auxiliary equipment 
and solar energy equipment (dual use equipment). Such equipment is solar 
energy property (i) only if its use of energy from sources other than 
solar energy does not exceed 25 percent of its total energy input in an 
annual measuring period and (ii) only to the extent of its basis of cost 
allocable to its use of solar or wind energy during an annual measuring 
period. An ``annual measuring period'' for an item of dual use equipment 
is the 365 day period beginning with the day it is placed in service or 
a 365 day period beginning the day after the last day of the immediately 
preceding annual measuring period. The allocation of energy use required 
for purposes of paragraphs (d)(6) (i) and (ii) of this section may be 
made by comparing, on a Btu basis, energy input to dual use equipment 
from solar energy with energy input from other sources. However, the 
Commissioner may accept any other method that, in his opinon, accurately 
establishes the relative annual use by dual use equipment of solar 
energy and energy derived from other sources.
    (7) Solar process heat equipment. Solar energy property does not 
include equipment that uses solar energy to generate steam at high 
temperatures for use in industrial or commercial processes (solar 
process heat).
    (8) Example. The following example illustrates this paragraph (d).

    Example. (a) In 1979, corporation X, a calendar year taxpayer, 
constructs an apartment building and purchases equipment to convert 
solar energy into heat for the building. Corporation X also installs an 
oil-fired water heater and other equipment to provide a backup source of 
heat when the solar energy equipment cannot meet the energy needs of the 
building. For purposes of this example, all equipment is placed in 
service on October 1, 1979. On a Btu basis, eighty percent of the total 
energy input to the dual use equipment during the 365 day period 
beginning October 1, 1979, is from solar energy.
    (b) The items purchased, in addition to the water heater, include a 
roof solar collector, a heat exchanger, a hot water tank, a control 
component, pumps, pipes, fan-coil units, and valves. Assume the fan-coil 
units could be used with energy derived from an oil or gas substance 
without significant modification. All items are depreciable and have a 
useful life of three years or more. The use of the equipment to heat the 
building is the first use to which the equipment has been put.
    (c) Water is pumped from the basement through pipes to the roof 
solar collector. Heated water returns through pipes to a heat exchanger 
which transfers heat to the water in the hot water tank.
    (d) The hot water tank and the oil-fired water heater utilize the 
same distribution pipe. Pumps and valves at the points of connection 
between the hot water tank, the oil-fired water heater, and the 
distribution pipe regulate the auxiliary energy supply use. They also 
prevent the oil-fired water heater from heating water in the hot water 
tank.
    (e) An integrated control component determines whether hot water 
from the hot water tank or from the oil-fired water heater is 
distributed to fan-coil units located throughout the building.
    (f) The roof solar collector is solar energy property. The pump that 
moves the water to the roof collector and the pipes between the roof 
collector and the hot water tank qualify because they are solely related 
to transporting solar heated water. The hot water tank qualifies because 
it stores water heated solely by solar radiation. The heat exchanger 
also qualifies.

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    (g) The oil-fired water heater does not qualify as solar energy 
property because it is auxiliary equipment.
    (h)(1) Because the distribution pipe, the control component, and the 
pumps and valves serve the oil-fired water heater as well as the solar 
energy equipment; they qualify only to the extent of eighty percent of 
their cost or basis, the portion allocable to use of solar energy. If, 
in a subsequent taxable year, the basis or cost allocable to their use 
of solar energy falls below eighty percent, recapture may be required 
under section 47 and Sec. 1.47-1(h). Thus, if, on a Btu basis, only 70 
percent of the total energy input to that equipment for the 365 day 
period beginning October 1, 1980, is from solar energy, then there will 
be complete recapture of the credit during the 1980 taxable year. If, 
however, for that 365 day period, the portion of that equipment's total 
energy input that is from solar energy is less than 80 percent but 
greater than or equal to 75 percent, then only a proportional amount of 
credit will be recaptured during the 1980 taxable year. No additional 
credit is allowable for the equipment in a subsequent taxable year, 
however, if the portion of its basis or cost allocable to use of solar 
energy increases above what it was for a previous taxable year (see 
Sec. 1.46-3 (d)(4)(i)).
    (2) The fan-coil units do not qualify as solar energy property 
because they are not specially adapted to use energy derived from solar 
energy.

    (e) Wind energy property--(1) In general. Energy property includes 
wind energy property. Wind energy property is equipment (and parts 
related to the functioning of that equipment) that performs a function 
described in paragraph (e)(2) of this section. In general, wind energy 
property consists of a windmill, wind-driven generator, storage devices, 
power conditioning equipment, transfer equipment, and parts related to 
the functioning of those items. Wind energy property does not include 
equipment that transmits or uses electricity derived from wind energy. 
In addition, limitations apply similar to those set forth in paragraphs 
(d) (5), (6), and (8) of this section. For example, if equipment is used 
by both auxiliary equipment and wind energy equipment, such equipment is 
wind energy property only if its use of energy other than wind energy 
does not exceed 25 percent of its total energy input in an annual 
measuring period and only to the extent of its basis or cost allocable 
to its use of wind energy during an annual measuring period.
    (2) Eligible functions. Wind energy property is limited to equipment 
(and parts related to the functioning of that equipment) that--
    (i) Uses wind energy to heat or cool, or provide hot water for use 
in, a building or structure, or
    (ii) Uses wind energy to generate electricity (but not mechanical 
forms of energy).
    (f) Specially defined energy property--(1) In general. Specially 
defined energy property means only those items described in paragraphs 
(f) (4) through (14) of this section that meet the requirements of 
paragraph (f)(2) of this section. The items described in paragraphs (f) 
(4) through (14) of this section also consist of related equipment, such 
as fans, pumps, ductwork, piping, and controls, the installation of 
which is necessary for the specified item to reduce the energy consumed 
or heat wasted by the process.
    (2) General requirements. To be eligible, each item described in 
paragraphs (f) (4) through (14) of this section must be installed in 
connection with an existing industrial or commercial facility. In 
addition, the principal purpose of each of those items must be reduction 
of energy consumed or heat wasted in any existing industrial or 
commercial process. See section 48(l)(10) and paragraph (l) of this 
section. If an item performs more than one function, only the 
incremental cost (as defined in paragraph (k) of this section) of the 
equipment qualifies.
    (3) Industrial or commercial process. (i) A process is a means or 
method of producing a desired result by chemical, physical, or 
mechanical action. For example, equipment installed in connection with 
retail sales, general office use, and residential use are not used in a 
process within the meaning of this paragraph (f)(3).
    (ii) An industrial process includes agricultural processes and 
thermal processes relating to production or manufacture, such as those 
involving boilers and furnaces.
    (iii) A commercial process includes laundering and food preparation.
    (iv) More than one process may be conducted in a single facility. 
The fact that several processes involved in the production of a product 
are integrated

[[Page 358]]

does not cause such integrated processes to be treated as one process. 
For example, in a food canning facility, producing prepared food from 
fresh vegetables is not one process but rather an integration of several 
processes including washing, cooking and canning.
    (v) The following example illustrates this paragraph (f)(3).

    Example. Corporation X, an advertising agency, acquires an automatic 
energy control system designed to reduce energy consumed by heating and 
cooling its office building. Although the use of an office for X's 
business is a commercial activity, heating or cooling an office is not 
an industrial or commercial process. The automatic energy control system 
does not qualify because it does not reduce energy consumed in an 
industrial or commercial process.

    (4) Recuperators. Recuperators recover energy, usually in the form 
of waste heat from combustion exhaust gases, hot exiting product, or 
product cooling air, that is used to heat incoming combustion air, raw 
materials, or fuel. Recuperators are configurations of equipment 
consisting in part of fixed heat transfer surfaces between two gas 
flows, and include related baffles, dividers, entrance flanges, 
transition sections, and shells or cases enclosing the other components 
of the recuperator. In general, a fixed heat transfer surface absorbs 
heat from a gas or liquid flow or dissipates heat to the gas or liquid 
flow.
    (5) Heat wheels. Heat wheels recover energy, usually in the form of 
waste heat, from exhaust gases to preheat incoming gases. Heat wheels 
are items of equipment consisting in part of regenerators (which rotate 
between two gas flows) and related drive components, wiper seals, 
entrance flanges, and transition sections.
    (6) Regenerators. Regenerators are devices, such as clinker columns 
or chains, that recover energy by efficiently storing heat while exposed 
to high temperature gases and releasing heat while exposed to low 
temperature gases, fluids, or solids.
    (7) Heat exchangers. Heat exchangers recover energy, usually in the 
form of waste heat, from high temperature gases, liquids, or solids for 
transfer to low temperature gases, liquids, or solids. Heat exchangers 
consist in part of fixed heat transfer surfaces (described in paragraph 
(f)(4) of this section) separating two media. Heat exchange equipment 
does not include fluidized bed combustion equipment.
    (8) Waste heat boilers. Waste heat boilers use waste heat, usually 
in the form of combustion exhaust gases, as a substantial source of 
energy. A substantial source of energy is one that comprises more than 
20 percent of the energy requirement on the basis of Btu's during the 
course of each taxable year (including the start-up year).
    (9) Heat pipes. Heat pipes recover energy, usually in the form of 
waste heat, from high temperature fluids to heat low temperature fluids. 
A heat pipe consists in part of sealed heat transfer chambers and a 
capillary structure. In general, the heat transfer chambers 
alternatively vaporize and condense a working fluid as it passes from 
one end of the chamber to the other.
    (10) Automatic energy control systems. Automatic energy control 
systems automatically reduce energy consumed in an industrial or 
commercial process for such purposes as environmental space conditioning 
(i.e., lighting, heating, cooling or ventilating, etc.). Automatic 
energy control systems include, for example, automatic equipment 
settings controls, load shedding devices, and relay devices used as part 
of such system. Property such as computer hardware installed as a part 
of the energy control system also qualifies, but only to the extent of 
its incremental cost (as defined in paragraph (k) of this section).
    (11) Turbulators. Turbulators increase the rate of transfer of heat 
from combustion gases to heat exchange surfaces by increasing the 
turbulence in the gases. A turbulator is a baffle placed in a boiler 
firetube or in a heat exchange tube in industrial process equipment to 
deflect gases to the heat transfer surface.
    (12) Preheaters. Preheaters recover energy, usually in the form of 
waste heat, from either combustion exhaust gases or steam, to preheat 
incoming combustion air or boiler feedwater. A preheater consists in 
part of fixed heat

[[Page 359]]

transfer surfaces (described in paragraph (f)(4) of this section) 
separating two fluids.
    (13) Combustible gas recovery systems. Combustible gas recovery 
systems are items of equipment used to recover unburned fuel from 
combustion exhaust gases.
    (14) Economizers. Economizers are configurations of equipment used 
to reduce energy demand or recover energy from combustion exhaust gases 
and other high temperature sources to preheat boiler feedwater.
    (15) Other property added by the Secretary. [Reserved]
    (g) Recycling equipment--(1) In general. Recycling equipment is 
equipment used exclusively to sort and prepare, or recycle, solid waste 
(other than animal waste) to recover usable raw materials (``recovery 
equipment''), or to convert solid waste (including animal waste) into 
fuel or other useful forms of energy (``conversion equipment''). 
Recycling equipment may include certain other onsite related equipment.
    (2) Recovery equipment. Recovery equipment includes equipment that--
    (i) Separates solid waste from a mixture of waste,
    (ii) Applies a thermal, mechanical, or chemical treatment to solid 
waste to ensure the waste will properly respond to recycling, or
    (iii) Recycles solid waste to recover usable raw materials, but not 
beyond occurrence of the first of the following:
    (A) The point at which a material has been created that can be used 
in beginning the fabrication of an end-product in the same way as 
materials from a virgin substance. Examples are the fiber stage in 
textile recycling, the newsprint or paperboard stage in paper recycling, 
and the ingot stage for other metals (other than iron and steel). In the 
case of recycling iron or steel, recycling equipment does not include 
any equipment used to reduce solid waste to a molten state or any 
process thereafter.
    (B) The point at which the material is a marketable product (i.e., 
has a value other than for recycling) even if the material is not 
marketed by the taxpayer at that point.
    (3) Conversion equipment. Conversion equipment includes equipment 
that converts solid waste into a fuel or other usable energy, but not 
beyond the point at which a fuel, steam, electricity, hot water, or 
other useful form of energy has been created. Thus, combustors, boilers, 
and similar equipment may be eligible if used for a conversion process, 
but steam and heat distribution systems between the combustor or boiler 
and the point of use are not eligible.
    (4) On-site related equipment. Recycling equipment also includes 
onsite loading and transportation equipment, such as conveyors, 
integrally related to other recycling equipment. This equipment may 
include equipment to load solid waste into a sorting or preparation 
machine and also a conveyor belt system that transports solid waste from 
preparation equipment to other equipment in the recycling process.
    (5) Solid waste. (i) The term ``solid waste'' has the same meaning 
as in Sec. 1.103-8(f)(2)(ii)(b), subject to the following exceptions and 
the other rules of this subparagraph (5):
    (A) The date the equipment is placed in service is substituted in 
the first sentence of Sec. 1.103-8(f)(2)(ii)(b) for the date of issue of 
the obligations, and
    (B) Material that has a market value at the place it is located only 
by reason of its value for recycling is not considered to have a market 
value.
    (ii) Solid waste may include a nominal amount of virgin materials, 
liquids, or gases, not to exceed 10 percent. If more than 10 percent of 
the material recycled during the course of any taxable year (including 
the ``start up'' year) consists of virgin material, liquids, or gases, 
the equipment ceases to be energy property and is subject to recapture 
under section 47. The determination of the portion of virgin material, 
liquids, or gases used is based on volume, weight, or Btu's whichever is 
appropriate.
    (6) Ineligible equipment. Transportation equipment, such as trucks, 
that transfer solid waste between geographically separated sites (e.g., 
the collection point and the recycling point) is not eligible. Steam and 
heat distribution systems are also ineligible.
    (7) Increased recycling capacity. If the equipment both replaces 
recycling capacity and increases that capacity at a

[[Page 360]]

particualr site, only the incremental cost (as defined in paragraph (k) 
of this section) of increasing the capacity qualifies. Recycling 
capacity is determined by the ability to produce a product not 
previously produced by the taxpayer, or more of an existing product, in 
a way that does not lower overall production.
    (8) Examples. The following examples illustrate this paragraph (g).

    Example 1. Corporation W recycles aluminum scrap metal. W owns a 
junk yard where it collects and crushes the metal into compact units. 
W's trucks bring the scrap metal from the junk yard to its main plant 
located 3 miles away. W's furnace equipment at the main plant reduces 
the scrap to the molten state and W's rolling equipment rolls the 
aluminum into sheets. The furnace qualifies, but for two separate 
reasons the rolling equipment does not qualify. First, the molten 
aluminum would be a marketable product if reduced to ingots prior to 
rolling. It is not necessary that W actually reduce the molten aluminum 
to ingots. Second, the molten aluminum could be used in the same way as 
virgin material.
    Example 2. Corporation X manufactures newsprint using wood chips 
discarded during X's lumber operations. Assume X could sell the wood 
chips to other companies located a short distance from X's mill for use 
as a fuel. None of the equipment used to manufacture the newsprint 
qualifies.
    Example 3. Assume the same facts as in example 2 except X uses old 
newspapers which have no value except for recycling in the area where 
X's mill is located. The equipment qualifies.
    Example 4. Corporation Y recycles municipal waste. Assume the 
municipal waste is ``solid waste'' under paragraph (g)(5) of this 
section. During the first taxable year Y operates the equipment, Y uses 
8,500 pounds of municipal waste and 1,500 pounds of virgin material and 
liquids. No energy credit is allowed for the equipment.
    Example 5. Corporation Z owns a waste recovery facility. The 
corrugated paper portion of the waste stream is picked off a conveyor as 
it enters the facility. The corrugated paper is baled and sold as a 
secondary paper product. Z acquires shredding and air-classification 
equipment. Corrugated paper that is not removed from the conveyor belt 
enters the new equipment for production as a fuel. Z increases the input 
of corrugated paper so that the same amount of corrugated paper is 
removed from the conveyor to be baled. The excess paper that is not 
removed for baling enters the shredding and air-classification 
equipment. The new equipment qualifies.

    (h) Shale oil equipment--(1) In general. Shale oil equipment used in 
mining or either surface or in situ processing qualifies as energy 
property. Shale oil equipment means equipment used exclusively to mine, 
or produce or extract oil from, shale rock.
    (2) Eligible processes. In general, processing equipment qualifies 
if used in or after the mining stage and up through the retorting 
process. Thus, eligible processes include crushing, loading into the 
retort, and retorting, but not hydrogenation, refining, or any process 
subsequent to retorting. However, with respect to in situ processing, 
eligible processes include creating the underground cavity.
    (3) Eligible equipment. Shale oil equipment includes--
    (i) Heading jumbos, bulldozers, and scaling and bolting rigs used to 
create an underground cavity for in situ processing,
    (ii) On-site water supply and treatment equipment and handling 
equipment for spent shale.
    (iii) Crushing and screening plant equipment, such as hoppers, 
feeders, vibrating screens, and conveyors,
    (iv) Briquetting plant equipment, such as hammer mills and vibratory 
pan feeders, and
    (v) Retort equipment, including direct cooling and condensing 
equipment.
    (i) [Reserved]
    (j) Natural gas from geopressured brine. Equipment used exclusively 
to extract natural gas from geopressured brine described in section 
613A(b)(3)(C)(i) is energy property. Eligible equipment includes 
equipment used to separate the gas from saline water and remove other 
impurities from the gas. Equipment is eligible only up to the point the 
gas may be introduced into a pipeline.
    (k) Incremental cost. The term ``incremental cost'' means the excess 
of the total cost of equipment over the amount that would have been 
expended for the equipment if the equipment were not used for a 
qualifying purpose. For example, assume equipment costing $100 performs 
a pollution control function and another function. Assuming it would 
cost $60 solely to perform the nonqualifying function, the incremental 
cost would be $40.

[[Page 361]]

    (l) Existing--(1) In general. For purposes of section 48(l), the 
term ``existing'' means--
    (i) When used in connection with a facility or equipment, 50 percent 
or more of the basis of that facility or equipment is attributable to 
construction, reconstruction, or erection before October 1, 1978, or
    (ii) When used in connection with an industrial or commercial 
process, that process was carried on in the facility as of October 1, 
1978.
    (2) Industrial or commercial process. (i) A process will be 
considered the same as the process carried on in the facility as of 
October 1, 1978, unless and until capitalizable expenditures are paid or 
incurred for modification of the process. The expenditures need not be 
capitalized in fact; it is sufficient if the taxpayer has an option or 
may elect to capitalize. In general, the date of change will be the date 
the expenditures are properly chargeable to capital account. If the 
taxpayer properly elects to expense a capitalizable expenditure, the 
date of change will be the date the expenditure could have been properly 
chargeable to capital account if the expenditure had been capitalized. 
Recapture will not occur by reason of a change in a process unless the 
process change also changes the use of the equipment. See example (1) of 
Sec. 1.47-1(h)(5).
    (m) Quality and performance standards--(1) In general. Energy 
property must meet quality and performance standards, if any, that have 
been prescribed by the Secretary (after consultation with the Secretary 
of Energy) and are in effect at the time of acquisition.
    (2) Time of acquisition. Under this paragraph (m) the time of 
acquisition is--
    (i) The date the taxpayer enters into a binding contract to acquire 
the property or
    (ii) For property constructed, reconstructed, or erected by the 
taxpayer, (A) the earlier of the date it begins construction, 
reconstruction, or erection of the property, or (B) the date the 
taxpayer and another person enter into a binding contract requiring each 
to construct, reconstruct, or erect property and place the property in 
service for an agreed upon use. See example under paragraph (m)(4) of 
this section.
    (3) Binding contract. Under this paragraph (m), a binding contract 
to construct, reconstruct, or erect property, or to acquire property, is 
a contract that is binding at all times on the taxpayer under applicable 
State or local law. A binding contract to construct, reconstruct, or 
erect property or to acquire property, does not include a contract for 
preparation of architect's sketches, blueprints, or performance of any 
other activity not involving the beginning of physical work.
    (4) Example. The following example illustrates this paragraph (m).

    Example. Corporation X owns a junk yard. Corporation Y manufactures 
recycling equipment and operates several recycling facilities. On 
January 1, 1979, X and Y enter into a written contract that is binding 
on both parties on that date and at all times thereafter. Under the 
contract's terms X will supply scrap metals to Y and Y agrees in return 
to build a recycling facility on land adjacent to the junk yard. Y will 
own and operate the facility using the scrap metal supplied by X. Y may 
treat the agreement as a binding contract under paragraph (m) (2) and 
(3) of this section.

    (n) Public utility property--(1) Inclusions. Public utility property 
is included in both of the following categories of energy property:
    (i) Shale oil equipment and
    (ii) Equipment for producing natural gas from geopressured brine.
    (2) Exclusions. Public utility property is excluded from each of the 
following categories of energy property:
    (i) Alternative energy property,
    (ii) Specially defined energy property,
    (iii) Solar or wind energy property, and
    (iv) Recycling equipment.
    (3) Public utility property. The term ``public utility property'' 
has the meaning given in section 46(f)(5).
    (o)-(p) [Reserved]
    (q) Qualified intercity buses--(1) In general. This paragraph (q) 
prescribes rules and definitions for purposes of section 48(l)(2)(A)(ix) 
and (16). Energy property includes qualified intercity buses of an 
eligible taxpayer, but only

[[Page 362]]

to the extent of the increase in the taxpayer's total operating seating 
capacity (operating capacity) under paragraphs (q) (9), (10), and (11) 
of this section. For application of recapture rules see Sec. 1.47-
1(h)(3)(ii).
    (2) Eligible taxpayer. A taxpayer is an eligible taxpayer only if it 
is determined to be both--
    (i) A common carrier regulated by the Interstate Commerce Commission 
or an appropriate State agency and
    (ii) Engaged in the trade or business of furnishing intercity 
transportation by bus.
    (3) Common carrier. The taxpayer is a common carrier only if the 
taxpayer holds itself out to the general public as providing passenger 
bus transportation for compensation over regular or irregular routes, or 
both.
    (4) Appropriate State agency. A State agency is appropriate only if 
it has both--
    (i) Power to regulate intrastate transportation provided by a motor 
carrier, within the meaning of section 10521(b)(1) of the Revised 
Interstate Commerce Act (49 U.S.C. 10521(b)(1)), and
    (ii) Power to initiate an exemption proceeding under section 1025(b) 
of that Act (49 U.S.C. 10525(b)).
    (5) Intercity transportation. Intercity transportation means 
intercity passenger transportation or intercity passenger charter 
service. Intercity transportation does not include transportation 
provided entirely within a municipality, contiguous municipalities, or 
within a zone that is adjacent to, and commercially a part of, the 
municipality or municipalities (within the meaning of section 
10526(b)(1) of the Revised Interstate Commerce Act (49 U.S.C. 
10526(b)(1)). See 49 CFR part 1048 (regulations defining commercial 
zones under that statute).
    (6) Definition of qualified intercity bus. A qualified intercity bus 
(qualifying bus) is an automobile bus--
    (i) The chassis and body of which are exempt (under section 
4063(a)(6)) from the 10-percent excise tax generally imposed under 
section 4061(a) on trucks and buses.
    (ii) With a seating capacity of at least 36 passengers (in addition 
to the driver).
    (iii) With one or more baggage compartments, in an area separated 
from the passenger area, with an aggregate capacity of at least 200 
cubic feet, and
    (iv) Which meets the predominant use test.
    (7) Predominant use test. (i) A bus meets the predominant use test 
for a taxable year only if it meets the following conditions:
    (A) It is used on a full-time basis during the taxable year, and
    (B) At least 70 percent of the total miles driven are driven while 
furnishing intercity transportation.
    (ii) A bus driven from the end point of one trip to the beginning 
point of another trip (``deadheading''), both of which furnish intercity 
transportation of passengers, will be considered to have been driven 
while furnishing intercity transportation of passengers, even if no 
passengers are carried.
    (iii) A bus is considered used on a full-time basis in a taxable 
year if it was driven 10,000 miles in that year. If available, the best 
evidence of annual mileage is the difference between odometer readings 
at the beginning and end of each taxable year. If the bus was placed in 
service during the taxable year, or for a short taxable year described 
in section 441(b)(3), that 10,000 mile figure is prorated on a daily 
basis.
    (iv) If a qualifying bus fails to meet the predominant use test in a 
taxable year, a cessation occurs in that taxable year. See Sec. 1.47-
1(h)(3)(ii).
    (v) The following examples illustrate this paragraph (q)(7):

    Example 1. X, a bus company, used a bus for trips between city M and 
city N, a distance of 100 miles. These trips qualify as furnishing 
intercity transportation. During the taxable year, 300 round trips were 
run carrying passengers both ways and 75 trips were run carrying 
passengers from city M to city N immediately after each of which the bus 
was returned to city M for the next trip. The bus was also driven 20,000 
miles to furnish passenger service which was local transportation. 
During the taxable year, the bus was driven a total of 100,000 miles. X 
makes the following calculations to determine if it met the predominant 
use test for the taxable year.

1. Total miles driven......................................      100,000
2. Intercity miles driven:
    a. Passenger round trips (100x2 X 300).................       60,000
    b. Passenger one-way (75x100)..........................        7,500

[[Page 363]]


    c. Non-passenger return trips (75x100).................        7,500
3. Total intercity passenger miles (sum of lines 2 a, b,          75,000
 and c)....................................................
4. 79% of line 1...........................................       70,000



Since line 1 is not less than 10,000 miles, the full-time use 
requirement is met. Since line 3 is greater than line 4, the 70 percent 
intercity mileage test is met. Thus, for the taxable year, the bus meets 
the predominant use test in paragraph (q)(7)(i) of this section.
    Example 2. The facts are the same as in example 1, except that the 
bus was placed in service on the last day of the taxable year. The bus 
was used only to run one round trip, carrying passengers, between cities 
M and N. 10,000 miles X one day /365 days=27.4 miles. Because, for the 
one day of the taxable year that the bus was in service, the bus was 
driven more than 27.4 miles, and all these miles were driven to furnish 
intercity transportation, it met the predominant use test for the 
taxable year.

    (8) Leased buses. (i) A bus which is leased is energy property only 
if it meets the requirements of paragraphs (q)(6) (i), (ii), and (iii) 
of this section, the lessee is an eligible taxpayer, and the bus meets 
the predominant use test in the hands of the lessee. If a leased bus is 
energy property, the energy credit is available only to the lessee 
unless paragraph (q)(8)(ii) of this section applies. The lessor must 
elect under section 48(d) for the lessee to claim the energy credit.
    (ii) If a leased bus is energy property and, on or before October 9, 
1984, either (A) the lessor and lessee enter into a lease and the lessee 
places the bus in service, or (B) the bus is not placed in service but 
the lessor and lessee enter into a binding contract under which the 
amount of the lease payments cannot be modified, then the energy credit 
is available to the lessor even if the lessor is not an eligible 
taxpayer.
    (iii) Notwithstanding Sec. 1.47-2(b)(1) (relating to the effect of a 
disposition by the lessee on the credit claimed by the lessor), if, by 
reason of a lease or the termination of a lease, a bus is used in a 
taxable year subsequent to the credit year by a person other than the 
one whose increase in operating capacity determined the amount of 
qualified investment for the energy credit, a disposition of the bus 
under Sec. 1.47-1(h)(2) results. However, if the energy credit for a bus 
was earned in a taxable year and a lease of the bus which qualifies 
under section 168(f)(8) (safe-harbor lease) is entered into in a 
subsequent taxable year, the safe-harbor lease is not a disposition of 
the bus and the lessee under that lease is treated as the lessee for 
purposes of this paragraph (q)(8). For the requirement to file an 
amended return if the energy credit was allowed in a prior taxable year, 
see Sec. 5c.168(f)(8)-6(b)(2)(ii) (Temporary Income Tax Regulations 
under the Economic Recovery Tax Act of 1981). For the rule for 
determining whose operating capacity determines qualified investment for 
the energy credit, see paragraph (q)(9)(ii) of this section. For the 
rule for leases to related taxpayers, see paragraph (q)(10)(ii) of this 
section.
    (9) Operating capacity. (i) Qualified investment for a qualifying 
bus is taken into account for the energy credit only to the extent the 
bus increases the taxpayer's operating capacity. To increase operating 
capacity, a bus must be counted in operating capacity. The increase in a 
taxpayer's operating capacity is the excess of the taxpayer's operating 
capacity for the current taxable year over its operating capacity for 
the immediately preceding taxable year. Related taxpayers determine 
operating capacity on a group basis under paragraph (q)(10) of this 
section.
    (ii) Operating capacity for a particular taxable year is determined 
by adding together the seating capacities of all intercity buses used by 
the taxpayer in that year and still owned by the taxpayer at the end of 
that year. An intercity bus is a bus which meets the chassis and body 
test and the predominant use test in paragraph (q)(6) of this section 
whether or not the bus is still in use at the end of the taxable year. 
In the case of a leased bus to which paragraph (q)(8) of this section 
applies, the lessee's operating capacity determines qualified investment 
for the energy credit.
    (iii) The qualified investment for the energy credit for a 
qualifying bus is the bus's qualified investment for the regular credit 
multiplied by a fraction. The numerator of the fraction is the increase 
in the taxpayer's operating capacity for the taxable year. The 
denominator is the added operating capacity for the taxable year. Added 
operating capacity for the taxable year is determined for a taxpayer by 
adding

[[Page 364]]

together the seating capacities of the taxpayer's intercity buses 
included in operating capacity for the taxable year which were not 
included in operating capacity for the immediately preceding taxable 
year.
    (iv) In the case of a partnership, each partner's qualified 
investment for the energy credit for a qualifying bus is the partner's 
qualified investment for the regular credit (determined under Sec. 1.46-
3(f) multiplied by the fraction referred to in paragraph (q)(9)(iii) of 
this section for the partnership, as determined for the partnership 
taxable year in which the bus is placed in service.
    (v) The following example illustrates this paragraph (q)(9):

    Example. Corporation Y is a calendar year bus company that is an 
eligible taxpayer under paragraph (q)(2) of this section. Based upon the 
facts as set forth in the following table, Y makes the following 
calculations to determine the energy credit earned in 1981:

1. 1980 operating capacity determined as of 12/31/80:
    a. 5 intercity busesx50 seats each.....................          250
                                                            ------------
    b. Total 1980 operating capacity.......................          250
2. 1981 operating capacity determined as of 12/31/8:
    a. 2 1980 buses used on a full-time basis in 1981......          100
    b. 1981 added capacity:................................
        i. Qualifying buses:
            Bus 1..........................................           45
            Bus 2..........................................           55
            Bus 3..........................................           50
        ii. Intercity bus not a qualifying bus.............           50
        iii. Total 1981 added capacity.....................          200
                                                            ------------
  c. Total 1981 operating capacity.........................          300
3. 1981 increase in operating capacity (line 2c-line 1b)...           50
4. Fraction for determining qualified investment                   \1/4\
 attributable to increase in capacity (line 3+line 2
 (b)(iii)).................................................


    Accordingly, the energy credit earned in 1981 for each of the 
qualifying buses is determined as follows:

------------------------------------------------------------------------
    Qualified
 investment for                                Energy             Energy
   the regular       x      Line 4     x     percentage     =     credit
     credit                                                       earned
------------------------------------------------------------------------
Bus 1: $15,000    .......    \1/4\  .......         10   ......     $375
Bus 2: $20,000    .......    \1/4\  .......         10   ......      500
Bus 3: $25,000    .......    \1/4\  .......         10   ......      625
                 -------------------------------------------------------
  Total energy    .......  .......  .......  ..........  ......    1,500
   credit earned
   in 1981
------------------------------------------------------------------------


    (10) Related taxpayers. (i) Related taxpayers are treated as one 
taxpayer in determining the increase in operating capacity under 
paragraph (q)(9)(ii) of this section and in determining the qualified 
investment in qualified intercity buses for the energy credit under 
paragraph (q)(9)(iii) of this section. Related taxpayers are members of 
a group of trades or businesses that are under common control (as 
defined in Sec. 1.52-1(b)).
    (ii) Related taxpayers make all computations relating to operating 
capacity on a group basis. Also, the determination of whether a bus 
meets the predominant use test is made on a group basis by aggregating 
bus usage by each member of the group. For example, if a bus is acquired 
by one member and used by that member for part of a taxable year and 
used by other members for the remainder, the combined usage is 
aggregated in determining whether the predominant use test is met. In 
addition, all related taxpayers are treated as one person in applying 
paragraph (q)(8) of this section (relating to leasing).
    (iii) The energy credit earned for a qualifying bus is allocated to 
the member which acquired (or is a lessee treated under section 48(d) as 
having acquired) the bus whether or not that member had a separate 
increase in operating capacity for the taxable year.
    (iv) Each member must make its own computation of the group's 
increase in operating capacity for the period comprising its taxable 
year. A member will make this computation as of the end of its taxable 
year ignoring different taxable years of other members. For the period 
comprising its taxable year, the member makes all calculations relating 
to group operating capacity, including the determination of full-time 
use by other members.
    (v) Each member determines the composition of the group as of the 
end of that member's taxable year. For example, if X uses the calendar 
year and makes its computation as of December 31, 1981, and Y is a 
member of X's group at that time, Y's operating capacity determined as 
of the end of X's immediately preceding taxable year (December 31, 1980) 
is taken into account by X for 1980 even if Y was not a member of the 
group for any day prior to December 31, 1981.

[[Page 365]]

    (vi) The following example illustrates this paragraph (q)(10):

    Example (a). Corporations X and Y are related taxpayers. In this 
example, each bus is a qualifying bus with a seating capacity of 50. 
Each bus owned at the close of either X's or Y's taxable year was used 
on a full-time basis for the relevant period corresponding to X's or Y's 
taxable year. Other facts are set forth in the following table:

------------------------------------------------------------------------
                                          X                   Y
------------------------------------------------------------------------
Taxable year ends..............  Dec. 31...........  June 30.
Operating capacity for 1979....  5 buses...........  10 buses.
Buses added....................  3 buses Mar. 1,     3 buses May 15,
                                  1980.               1981.
Buses sold.....................  2 buses Mar. 31,    2 buses Sept. 30,
                                  1981.               1980.
Cost of each added bus.........  $40,000...........  $60,000.

------------------------------------------------------------------------

    (b) X makes the following calculations to determine the energy 
credit earned for calendar year 1980.




1. 1979 operating capacity determined as of 12/31/79:
    a. Attributable to X (5 busesx50 seats)....................      250
    b. Attributable to Y (10 busesx50 seats)...................      500
                                                                --------
    c. Total 1979 operating capacity...........................      750
2. 1980 operating capacity determined as of 12/31/80:
    a. X's 5 and Y's 8 1979 buses used on a full-time basis in       650
     1980 and still owned on 12/31/80..........................
    b. 1980 added capacity (X's 3 busesx50 seats)..............      150
                                                                --------
    c. Total 1980 operating capacity...........................      800
3. 1980 increase in operating capacity (line 2c-line 1c).......       50
4. Fraction in paragraph (q)(9)(iii) of this section (line 3/      \1/3\
 line 2b)......................................................


    Accordingly, X earned an energy credit of $4,000 in 1980 
($40,000x\1/3\x10%x3 buses).
    (c) Since in calendar year 1981 X placed no qualifying buses in 
service, X earned no energy credit in 1981.
    (d) Since in the taxable year 7/1/79-6/30/80 Y placed no qualifying 
buses in service, Y earned no energy credit in that taxable year.
    (e) Y makes the following calculations to determine the energy 
credit earned in the taxable year 7/1/80--6/30/81.




1. Operating capacity for the taxable year ending 6/30/80
 determined as of the close of that year:
    a. Attributable to X (8 busesx50 seats)....................      400
    b. Attributable to Y (10 busesx50 seats)...................      500
                                                                --------
    c. Total operating capacity for that year..................      900
2. Operating capacity for the taxable year ending 6/30/81
 determined as of the close of that year:
    a. X's 6 and Y's 8 buses from prior taxable year used on a       700
     full-time basis during current taxable year and still
     owned on 6/30/81..........................................
    b. Capacity added during current taxable year (Y's 3             150
     busesx50 seats)...........................................
                                                                --------
    c. Total operating capacity for that year..................      850
3. Increase in operating capacity for taxable year ending 6/30/     (50)
 81 (line 2c-line 1c)..........................................


    As determined for Y's taxable year ending 6/30/81 the group 
experienced a decrease in operating capacity. Thus, no energy credit is 
available for the buses Y placed in service in its taxable year ending 
6/30/81.

    (11) Section 381(a) transactions. (i) In the case of a transaction 
described in section 381(a), the operating capacity of each transferor 
or distributor corporation, determined as of the date of distribution or 
transfer (within the meaning of Sec. 1.381(b)-1(b)), shall reduce the 
operating capacity of the acquiring corporation (determined without this 
paragraph (q)(11)) for its first taxable year ending on or after that 
date for purposes of determining the acquiring corporation's energy 
credit for that year. This paragraph (q)(11) shall not apply to any case 
to which paragraph (q)(10) of this section (dealing with related 
taxpayers) applies.
    (ii) The following example illustrates this paragraph (q)(11):

    Example. X and Y are unrelated corporations which use the calendar 
year. For 1981, each has an operating capacity of 250 seats (5 busesx50 
seats). X merges into Y on January 1, 1982. On May 1, 1982, Y retires 
and sells two buses and acquires four 50-seat qualifying buses at a cost 
of $40,000 each. All buses owned by Y on December 31, 1982, are included 
in operating capacity. Y makes the following calculations to determine 
the energy credit earned in taxable year 1982.




1. Y's 1981 operating capacity determined as of 12/31/81.......      250
2.1982 operating capacity determined as of 12/31/82 without
 this paragraph (q)(11):
    a. X's 5 buses plus Y's 5 1981 buses less 2 retired buses        400
     (8 busesx50 seats)........................................
    b. 1982 added capacity (4 busesx50 seats)..................      200
                                                                --------
    c. Total...................................................      600
3. Operating capacity of transferor (X) on 1/1/82..............      250
                                                                --------
4. Y's 1982 operating capacity (line 2c-line 3)................      350
5. 1982 increase in operating capacity (line 4-line 1).........      100
6. Fraction in paragraph (q)(9)(iii) of this section (line 5/      \1/2\
 line 2b)......................................................
7. Energy credit earned in 1982 ($40,000x\1/2\x10%x4 buses)....   $8,000



[[Page 366]]


(Secs. 7805 (68A Stat. 917, 26 U.S.C. 7805) and 38 (b) (76 Stat. 962, 26 
U.S.C. 38) of the Internal Revenue Code of 1954; secs. 38(b) (76 Stat. 
963, 26 U.S.C. 38(b)), 48(l)(16) (94 Stat. 264, 26 U.S.C. 48(l)(16)), 
and 7805 (68A Stat. 917, 26 U.S.C. 7805))

[T.D. 7291, 46 FR 7291, Jan. 23, 1981, as amended by T.D. 7982, 49 FR 
39542, Oct. 9, 1984; 49 FR 41246, Oct. 22, 1984; T.D. 8014, 50 FR 11853, 
Mar. 26, 1985; T.D. 8147, 52 FR 27337, July 21, 1987]