[Code of Federal Regulations]
[Title 26, Volume 6]
[Revised as of April 1, 2004]
From the U.S. Government Printing Office via GPO Access
[CITE: 26CFR1.468A-3]

[Page 342-353]
 
                       TITLE 26--INTERNAL REVENUE
 
    CHAPTER I--INTERNAL REVENUE SERVICE, DEPARTMENT OF THE TREASURY 
                               (CONTINUED)
 
PART 1_INCOME TAXES--Table of Contents
 
Sec. 1.468A-3  Ruling amount.

    (a) In general. (1) Except as otherwise provided in paragraph (j) of 
this section, an electing taxpayer is allowed a deduction under section 
468A(a) for the taxable year in which the taxpayer makes a cash payment 
(or is deemed to make a cash payment) to a nuclear decommissioning fund 
only if the taxpayer has received a schedule of ruling amounts for the 
nuclear decommissioning fund that includes a ruling amount for such 
taxable year. Except as provided in paragraph (a) (4) or (5) of this 
section, a schedule of ruling amounts for a nuclear decommissioning fund 
(``schedule of ruling amounts'') is a ruling (within the meaning of 
paragraph (a)(2) of Sec. 601.201) specifying the annual payments 
(``ruling amounts'') that, over the taxable years remaining in the 
``funding period'' as of the date the schedule first applies, will 
result in a projected balance of the nuclear decommissioning fund as of 
the last day of the funding period equal to (and in no event greater 
than) the ``amount of decommissioning costs allocable to the fund.'' The 
projected balance of a nuclear decommissioning fund as of the last day 
of the funding period shall be calculated by taking into account the 
fair market value of the assets of the fund as of the first day of the 
first taxable year to which the schedule of ruling amounts applies and 
the estimated rate of return to be earned by the assets of the fund 
after payment of the estimated administrative costs and incidental 
expenses to be incurred by the fund (as defined in paragraph (a)(3)(ii) 
of Sec. 1.468A-5), including all Federal, State and local income taxes 
to be incurred by the fund (the ``after-tax rate of return''). See 
paragraph (c) of this section for a definition of funding period and 
paragraph (d) of this section for guidance with respect to the amount of 
decommissioning costs allocable to a fund.
    (2) To the extent consistent with the principles and provisions of 
this section, each schedule of ruling amounts shall be based on the 
reasonable assumptions and determinations used by the applicable public 
utility commission(s) in establishing or approving the amount of 
decommissioning costs to be included in cost of service for ratemaking 
purposes, taking into account amounts that are otherwise required to be 
included in the taxpayer's income under section 88 and the regulations 
thereunder. Thus, for example, each schedule of ruling amounts shall be 
based on the public utility commission's reasonable assumptions 
concerning--
    (i) The after-tax rate of return to be earned by the amounts 
collected for decommissioning;
    (ii) The total estimated cost of decommissioning the nuclear power 
plant (see paragraph (d)(2) of this section); and
    (iii) The frequency of contributions to a nuclear decommissioning 
fund for

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a taxable year (e.g., monthly, quarterly, semi-annual or annual 
contributions).
    (3) The Internal Revenue Service shall provide a schedule of ruling 
amounts that is identical to the schedule of ruling amounts proposed by 
the taxpayer in connection with the taxpayer's request for a schedule of 
ruling amounts (see paragraph (h)(2)(viii) of this section), but no 
schedule of ruling amounts shall be provided unless the taxpayer's 
proposed schedule of ruling amounts is consistent with the principles 
and provisions of this section. If a proposed schedule of ruling amounts 
is not consistent with the principles and provisions of this section, 
the taxpayer may propose an amended schedule of ruling amounts that is 
consistent with such principles and provisions.
    (4) The Internal Revenue Service will approve, at the request of the 
taxpayer, a formula or method for determining a schedule of ruling 
amounts (rather than a schedule specifying a dollar amount for each 
taxable year) that is consistent with the principles and provisions of 
this section. See paragraph (i)(1)(ii) of this section for a special 
rule relating to the mandatory review of ruling amounts that are 
determined pursuant to a formula or method.
    (5) The Internal Revenue Service may, in its discretion, provide a 
schedule of ruling amounts that is determined on a basis other than the 
rules of paragraphs (a) through (g) of this section if--
    (i) In connection with its request for a schedule of ruling amounts, 
the taxpayer explains the need for special treatment and sets forth an 
alternative basis for determining the schedule of ruling amounts; and
    (ii) The Internal Revenue Service determines that special treatment 
is consistent with the purpose of section 468A.
    (b) Level funding limitation. (1) Except as otherwise provided in 
paragraph (b)(4) of this section and paragraph (b)(6) of Sec. 1.468A-8 
(relating to a special transitional rule), the ruling amount specified 
in a schedule of ruling amounts for any taxable year in the level 
funding limitation period shall not be less than the ruling amount 
specified in such schedule for any earlier taxable year.
    (2) For purposes of this section, the level funding limitation 
period for a nuclear decommissioning fund is the period that--
    (i) Begins on the first day of the first taxable year for which a 
deductible payment is made (or deemed made) to such nuclear 
decommissioning fund (see paragraph (a) of Sec. 1.468A-2 for rules 
relating to the first taxable year for which a payment may be made (or 
deemed made) to a nuclear decommissioning fund); and
    (ii) Ends on the last day of the taxable year that includes the 
estimated date on which the nuclear power plant to which the nuclear 
decommissioning fund relates will no longer be included in the 
taxpayer's rate base for ratemaking purposes (see paragraphs (e) (2) and 
(4) of this section).
    (3) The ruling amount specified in a schedule of ruling amounts for 
a taxable year after the end of the level funding limitation period may 
be less than the ruling amount specified in such schedule for an earlier 
taxable year.
    (4) The ruling amount specified in a schedule of ruling amounts for 
the last taxable year in the level funding limitation period may be less 
than the ruling amount specified in such schedule for any earlier 
taxable year if the applicable public utility commission assumes for 
cost of service purposes that decommissioning costs will be included in 
cost of service for only a portion of the last taxable year in the level 
funding limitation period. The ruling amount for the last taxable year 
in the level funding limitation period, however, may not be less than 
the amount that bears the same relationship to the ruling amount for the 
preceding taxable year as the period for which decommissioning costs 
will be included in cost of service for such last taxable year bears to 
one year.
    (c) Funding period--(1) General rule. For purposes of this section, 
the funding period for a nuclear decommissioning fund is the period 
that--
    (i) Begins on the first day of the first taxable year for which a 
deductible payment is made (or deemed made) to such nuclear 
decommissioning fund

[[Page 344]]

(see paragraph (a)(1) Sec. 1.468A-2 for rules relating to the first 
taxable year for which a payment may be made (or deemed made) to a 
nuclear decommissioning fund); and
    (ii) Ends on the later of--
    (A) The last day of the taxable year that includes the estimated 
date on which decommissioning costs of the nuclear power plant to which 
the nuclear decommissioning fund relates will no longer be included in 
the taxpayer's cost of service for ratemaking purposes (see paragraph 
(e)(1) of this section); or
    (B) The last day of the taxable year that includes the estimated 
date on which the nuclear power plant to which the nuclear 
decommissioning fund relates will no longer be included in the 
taxpayer's rate base for ratemaking purposes (see paragraph (e)(2) of 
this section).
    (2) Examples. The following examples illustrate the application of 
the principles of paragraphs (a), (b) and (c) of this section:

    Example (1). (i) X corporation is a calendar year, accrual method 
taxpayer engaged in the sale of electric energy generated by power 
plants owned by X. On March 15, 1995, X commences the construction of a 
nuclear power plant in State A. On May 15, 1995, the public utility 
commission of State A issues a final rate order for the four-year period 
beginning on January 1, 1995, that authorizes X to collect 
decommissioning costs from ratepayers residing in State A. For the 1995 
taxable year, X is authorized to collect decommissioning costs of 
$500,000, and, for each taxable year during the remainder of the period 
to which the rate order applies, X is authorized to collect 
decommissioning costs in an amount equal to 105 percent of the amount 
authorized to be collected for the preceding taxable year.
    (ii) In determining the amount of decommissioning costs to be 
collected from ratepayers residing in State A, the public utility 
commission assumes that (A) decommissioning costs will be included in 
cost of service for each taxable year in the period that begins with 
1995 and ends with 2025 and (B) decommissioning costs collected pursuant 
to subsequent rate orders will increase in the same manner as amounts 
collected pursuant to the rate order issued on May 15, 1995. In 
addition, in determining the rate of return to be earned by X with 
respect to the nuclear power plant, the public utility commission 
assumes that the nuclear power plant will be included in rate base for 
each year in the period that begins with 2000 and ends with 2025.
    (iii) X requests a schedule of ruling amounts in accordance with the 
rules of paragraph (h) of this section for the period beginning with the 
1995 taxable year. In determining the level funding limitation period 
and the funding period, the Internal Revenue Service shall assume that a 
deductible payment will be made to a nuclear decommissioning fund for 
the 1995 taxable year. Thus, under paragraph (b) of this section, the 
level funding limitation period begins on January 1, 1995, and ends on 
December 31, 2025. Under paragraph (c)(1) of this section, the funding 
period begins on January 1, 1995, and ends on December 31, 2025.
    (iv) In its request for a schedule or ruling amounts, X proposes a 
ruling amount for each taxable year in the funding period that 
corresponds to the projected cost of service amount for such taxable 
year. If (A) the assumptions and determinations used by the public 
utility commission in establishing the amount of decommissioning costs 
to be included in cost of service are reasonable and (B) the amounts 
collected pursuant to the proposed schedule, combined with the after-tax 
earnings on such amounts, will result in a projected balance of the 
nuclear decommissioning fund as of December 31, 2025, equal to the 
amount of decommissioning costs allocable to the fund, then, under 
paragraph (a)(3) of this section, each ruling amount in the initial 
schedule of ruling amounts shall equal the ruling amount proposed by X 
in connection with its request for a schedule of ruling amounts. Thus, 
the ruling amount for the 1995 taxable year would be $500,000, and the 
ruling amount for each subsequent taxable year would be 105 percent of 
the ruling amount for the preceding taxable year.
    Example (2). (i) Assume the same facts as in Example (1), except 
that on May 15, 1995, the public utility commission of State A issues a 
final rate order for the four-year period beginning on January 1, 1995, 
that authorizes X to collect decommissioning costs of $600,000 per year 
from ratepayers residing in State A. In determining the amount of 
decommissioning costs to be collected from ratepayers residing in State 
A, the public utility commission assumes that decommissioning costs of 
$600,000 will be collected for each taxable year in the period that 
begins with 1995 and ends with 2004 and that decommissioning costs of 
$200,000 will be collected for each taxable year in the period that 
begins with 2005 and ends with 2025.
    (ii) X requests a schedule of ruling amounts in accordance with the 
rules of paragraph (h) of this section for the period beginning with the 
1995 taxable year. In determining the level funding limitation period 
and the funding period, the Internal Revenue Service shall assume that a 
deductible payment will be made to a nuclear decommissioning fund for 
the 1995 taxable

[[Page 345]]

year. Thus, under paragraph (b) of this section, the level funding 
limitation period begins on January 1, 1995, and ends on December 31, 
2025. Under paragraph (c)(1) of this section, the funding period begins 
on January 1, 1995, and ends on December 31, 2025.
    (iii) In its request for a schedule of ruling amounts, X proposes a 
ruling amount for each taxable year in the funding period that 
corresponds to the projected cost of service amount for such taxable 
year. A schedule of ruling amounts based on the projected cost of 
service amount would be inconsistent with the level funding limitation 
of paragraph (b) of this section because the projected cost of service 
amount for 2005 is less than the projected cost of service amount for 
2004. Consequently, under paragraph (a)(3) of this section, no schedule 
of ruling amounts shall be provided to X unless X proposes an amended 
schedule of ruling amounts that is consistent with the level funding 
limitation and the other principles and provisions of this section.
    (iv) Assume that X proposes an amended schedule of ruling amounts 
that provides for ruling amounts of $400,000 for each taxable year in 
the funding period. If (A) the schedule of ruling amounts proposed by X 
is based on the reasonable assumptions and determinations used by the 
public utility commission in establishing the amount of decommissioning 
costs to be included in cost of service and (B) the amounts collected 
pursuant to the proposed schedule, combined with the after-tax earnings 
on such amounts, will result in a projected balance of the nuclear 
decommissioning fund as of December 31, 2025, equal to the amount of 
decommissioning costs allocable to the fund, then, under paragraph 
(a)(3) of this section, each ruling amount in the initial schedule of 
ruling amounts shall equal the ruling amount proposed by X in connection 
with its request for a schedule of ruling amounts. Thus, the ruling 
amount for the 1995 taxable year and for each subsequent taxable year 
through 2025 would be $400,000.
    (v) Under section 468A(b) and paragraph (b)(1) of Sec. 1.468A-2, 
the maximum amount of cash payments that X can make to a nuclear 
decommissioning fund for any taxable year shall not exceed the lesser of 
(A) the cost of service amount for such taxable year or (B) the ruling 
amount for such taxable year. If the projected cost of service amount 
that was assumed in determining rates under the rate order that was 
issued on May 15, 1995, is the actual cost of service amount for each 
taxable year in the funding period and the ruling amounts provided in 
the initial schedule of ruling amounts are not changed by a subsequent 
schedule of ruling amounts, then X would be allowed to make a deductible 
contribution of $400,000 to a nuclear decommissioning fund for each 
taxable year in the period that begins with 1995 and ends with 2004 and 
to make a deductible contribution of $200,000 to such nuclear 
decommissioning fund for each taxable year in the period that begins 
with 2005 and ends with 2025.
    Example (3). (i) Y corporation is a calendar year, accrual method 
taxpayer engaged in the sale of electric energy generated by power 
plants owned by Y. On June 1, 1990, a nuclear power plant owned by Y 
began commercial operations in State B. In the first ratemaking 
proceeding in which the nuclear power plant was included in rate base, 
the public utility commission of State B assumed that the nuclear power 
plant would be included in rate base for each year in the period that 
began with 1990 and ended with 2020. In addition, for each taxable year 
in the period that began with 1990 and ended with 2017, Y made a 
deductible contribution of $750,000 to a nuclear decommissioning fund 
established by Y. The $750,000 contribution equalled the cost of service 
amount and the ruling amount for each taxable year in the 28-year 
period.
    (ii) On August 30, 2017, the public utility commission of State B 
issues a final rate order for the six-year period beginning on January 
1, 2018, that authorizes Y to collect decommissioning costs of: (A) 
$500,000 for 2018, 2019 and 2020; (B) $1,500,000 for 2021; (C) 
$1,000,000 for 2022; and (D) $750,000 for 2023. In determining the 
amount of decommissioning costs to be collected from ratepayers residing 
in State B, the public utility commission assumes that decommissioning 
costs will no longer be included in cost of service after 2023. In 
addition, in determining the rate of return to be earned by Y with 
respect to the nuclear power plant, the public utility commission 
assumes that the nuclear power plant will no longer be included in rate 
base after 2020.
    (iii) Under paragraph (i)(1)(iii) of this section, Y is required to 
request a revised schedule of ruling amounts on or before March 15, 
2019. Assume that Y makes a timely request for a revised schedule of 
ruling amounts in accordance with the rules of paragraph (h) of this 
section. In its request, Y proposes a ruling amount for each taxable 
year in the period that begins with 2018 and ends with 2023 that 
corresponds to the amount of decommissioning costs to be included in 
cost of service under the rate order of August 30, 2017.
    (iv) Under paragraph (b) of this section, the level funding 
limitation period begins on January 1, 1990, and ends on December 31, 
2020. Under paragraph (c)(1) of this section, the funding period begins 
on January 1, 1990, and ends on December 31, 2023.
    (v) If (A) the assumptions and determinations used by the public 
utility commission in establishing the amount of decommissioning costs 
to be included in cost of service are reasonable and (B) the projected 
balance of the nuclear decommissioning fund as of

[[Page 346]]

December 31, 2023 (taking into account the fair market value of the 
assets of the fund as of January 1, 2018, and the estimated after-tax 
rate of return to be earned by the assets of the fund) will equal the 
amount of decommissioning costs allocable to the fund, then, under 
paragraph (a)(3) of this section, each ruling amount in the revised 
schedule of ruling amounts shall equal the ruling amount proposed by Y 
in connection with its request for a schedule of ruling amounts. Thus, 
the ruling amount for 2018, 2019 and 2020 would be $500,000, the ruling 
amount for 2021 would be $1,500,000, the ruling amount for 2022 would be 
$1,000,000 and the ruling amount for 2023 would be $750,000.
    (vi) Although the ruling amount specified in the revised schedule of 
ruling amounts for 2018, 2019 and 2020 is less than a ruling amount 
specified in a prior schedule of ruling amounts for years prior to 2018, 
the revised schedule of ruling amounts is consistent with the level 
funding limitation. Under paragraph (i)(3) of this section, a ruling 
amount specified in a revised schedule of ruling amounts for any taxable 
year in level funding limitation period may be less than one or more 
ruling amounts specified in a prior schedule of ruling amounts for a 
prior taxable year. In addition, although the ruling amount specified in 
the revised schedule of ruling amounts for 2022 and 2023 is less than a 
ruling amount specified in such schedule for a prior taxable year, the 
revised schedule of ruling amounts is consistent with the level funding 
limitation because the level funding limitation period ends on December 
31, 2020.

    (d) Decommissioning costs allocable to a fund. The amount of 
decommissioning costs allocable to a nuclear decommissioning fund is 
determined for purposes of this section by applying the following rules 
and definitions:
    (1) General rule. The amount of decommissioning costs allocable to a 
nuclear decommissioning fund is the taxpayer's share of the total 
estimated cost of decommissioning the nuclear power plant to which the 
fund relates, multiplied by the qualifying percentage.
    (2) Total estimated cost of decommissioning. (i) Except as otherwise 
provided in paragraph (d)(2)(ii) of this section, the total estimated 
cost of decommissioning a nuclear power plant is the reasonably 
estimated cost of decommissioning used by the applicable public utility 
commission in establishing or approving the amount of decommissioning 
costs to be included in cost of service for ratemaking purposes. If, in 
establishing or approving the amount of decommissioning costs to be 
included in cost of service, the public utility commission uses an 
estimated cost of decommissioning that is equal to a generic estimate of 
the cost of decommissioning as determined by the Nuclear Regulatory 
Commission (or an estimated cost that is based on the generic estimate 
adjusted for inflation), the Internal Revenue Service may, at its 
discretion, accept such amount as a reasonable estimate of the cost of 
decommissioning. In addition, if the estimated costs used by the 
applicable public utility commission are expected to be paid in any 
taxable year other than the taxable year that includes the last day of 
the funding period or the immediately succeeding taxable year, such 
costs must be adjusted (increased or decreased, as the case may be) by 
discounting or compounding such costs at the after-tax rate of return 
from the date such costs are expected to be paid to the last day of the 
funding period.
    (ii) If, in establishing or approving the amount of decommissioning 
costs to be included in cost of service, the applicable public utility 
commission assumes a projected balance of amounts set aside for 
decommissioning (whether or not such amounts are provided by a nuclear 
decommissioning fund) that is less than the total estimated cost of 
decommissioning assumed by the public utility commission, the total 
estimated cost of decommissioning for purposes of determining the 
schedule of ruling amounts shall equal the projected balance of amounts 
set aside for decommissioning that was assumed by the public utility 
commission.
    (3) Taxpayer's share. The taxpayer's share of the total estimated 
cost of decommissioning a nuclear power plant equals the total estimated 
cost of decommissioning such nuclear power plant multiplied by the 
percentage of such nuclear power plant that the qualifying interest of 
the taxpayer represents (see paragraph (b)(2) of Sec. 1.468A- 1 for 
circumstances in which a taxpayer possesses a qualifying interest in a 
nuclear power plant).
    (4) Qualifying percentage. (i) Except as otherwise provided in 
paragraph

[[Page 347]]

(b)(7)(iii) of Sec. 1.468A-8 (relating to a special transitional rule), 
the qualifying percentage for any nuclear decommissioning fund is equal 
to the fraction, the numerator of which is the number of taxable years 
in the estimated period for which the nuclear decommissioning fund is to 
be in effect and the denominator of which is the number of taxable years 
in the estimated useful life of the applicable nuclear power plant.
    (ii) Except as otherwise provided in paragraph (b)(7) (i) of (ii) of 
Sec. 1.468A-8 (relating to special transitional rules), the estimated 
period for which a nuclear decommissioning fund is to be in effect--
    (A) Begins on the later of--
    (1) The first day of the first taxable year for which a deductible 
payment is made (or deemed made) to such nuclear decommissioning fund; 
or
    (2) The first day of the taxable year that includes the date the 
nuclear power plant to which such nuclear decommissioning fund relates 
begins commercial operations; and
    (B) Ends on the last day of the taxable year that includes the 
estimated date on which the nuclear power plant to which such nuclear 
decommissioning fund relates will no longer be included in the 
taxpayer's rate base for ratemaking purposes (see paragraph (e) (3) and 
(4) of this section).
    (iii) Except as otherwise provided in paragraph (b)(7)(ii) of Sec. 
1.468A-8 (relating to a special transitional rule), the estimated useful 
life of a nuclear power plant.
    (A) Begins on the first day of the taxable year that includes the 
date that the nuclear power plant begins commercial operations; and
    (B) Ends on the last day of the taxable year that includes the 
estimated date on which the nuclear power plant will no longer be 
included in the taxpayer's rate base for ratemaking purposes (see 
paragraph (e) (3) and (4) of this section).
    (e) Determination of estimated dates. (1) For purposes of paragraph 
(c)(1)(ii)(A) of this section (relating to the funding period), the 
estimated date on which decommissioning costs of the nuclear power plant 
to which the nuclear decommissioning fund relates will no longer be 
included in the taxpayer's cost of service for ratemaking purposes is 
determined under the ratemaking assumptions that were used to determine 
the last rates (whether interim or final) that were established or 
approved by the applicable public utility commission prior to the filing 
of the current request for a schedule of ruling amounts.
    (2) For purposes of paragraphs (b)(2)(ii) and (c)(1)(ii)(B) of this 
section (relating to the level funding limitation period and the funding 
period), the estimated date on which the nuclear power plant to which 
the nuclear decommissioning fund relates will no longer be included in 
the taxpayer's rate base for ratemaking purposes is determined under the 
ratemaking assumptions that were used to determine the last rates 
(whether interim or final) that were established or approved by the 
applicable public utility commission prior to the filing of the current 
request for a schedule of ruling amounts.
    (3) For purposes of paragraph (d)(4) (ii)(B) and (iii)(B) of this 
section (relating to the qualifying percentage), the estimated date on 
which the nuclear power plant to which the nuclear decommissioning fund 
relates will no longer be included in the taxpayer's rate base for 
ratemaking purposes is determined under the ratemaking assumptions used 
by the applicable public utility commission in establishing or approving 
rates during the first ratemaking proceeding in which the nuclear power 
plant was included in the taxpayer's rate base.
    (4) For purposes of this section, in the case of a taxpayer whose 
interest in the nuclear power plant is described in paragraph (b)(2)(ii) 
of Sec. 1.468A-1, the date corresponding to ``the estimated date on 
which the nuclear power plant to which the nuclear decommissioning fund 
relates will no longer be included in the taxpayer's rate base'' will be 
determined upon the basis of all the facts and circumstances in a manner 
consistent with the provisions of this section and section 468A of the 
Code.
    (5) A formula or method obtained under paragraph (a)(4) of this 
section may provide for changes in an estimated date described in 
paragraph

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(e)(1) or (2) of this section to reflect changes in the ratemaking 
assumptions used to determine rates (whether interim or final) that are 
established or approved by the applicable public utility commission 
after the filing of the request for approval of a formula or method.
    (f) Special rules in the case of rates established or approved by 
two or more public utility commissions. If two or more public utility 
commissions establish or approve rates for electric energy generated by 
a single nuclear power plant, the following rules shall apply in 
determining the schedule of ruling amounts for the nuclear 
decommissioning fund that relates to such nuclear power plant.
    (1) A schedule of ruling amounts shall be separately determined 
pursuant to the rules of paragraphs (a) through (e) of this section for 
each public utility commission that has determined the amount of 
decommissioning costs to be included in cost of service for ratemaking 
purposes with respect to such nuclear power plant (see paragraph (g) of 
this section).
    (2) The separate determination with respect to a public utility 
commission shall be based on the reasonable assumptions and 
determinations used by such public utility commission and shall take 
into account only that portion of the total estimated cost of 
decommissioning the nuclear power plant that is properly allocable to 
the ratepayers whose rates are established or approved by such public 
utility commission.
    (3) The ruling amount applicable to the nuclear decommissioning fund 
for any taxable year is the sum of the ruling amounts for such taxable 
year determined under the separate schedules of ruling amounts.
    (4) The schedule of ruling amounts for the nuclear decommissioning 
fund is the schedule of the ruling amounts determined under paragraph 
(f)(3) of this section.
    (g) Requirement of determination by public utility commission of 
decommissioning costs to be included in cost of service. The Internal 
Revenue Service shall not provide a taxpayer with a schedule of ruling 
amounts for any nuclear decommissioning fund unless a public utility 
commission that establishes or approves rates for electric energy 
generated by the nuclear power plant to which the nuclear 
decommissioning fund relates has--
    (1) Determined the amount of decommissioning costs of such nuclear 
power plant to be included in the taxpayer's cost of service for 
ratemaking purposes; and
    (2) Disclosed the after-tax return and any other assumption and 
determinations used in establshing or approving such amount for any 
taxable year beginning on or after January 1, 1987.
    (h) Manner of requesting schedule of ruling amounts--(1) In general. 
(i) In order to receive a ruling amount for any taxable year, a taxpayer 
must file a request for a schedule of ruling amounts that complies with 
the requirements of this paragraph (h), the applicable procedural rules 
set forth in paragraph (e) of Sec. 601.201 (Statement of Procedural 
Rules) and the requirements of any applicable revenue procedure that is 
in effect on the date the request is filed.
    (ii) A separate request for a schedule of ruling amounts is required 
for each nuclear decommissioning fund established by a taxpayer (see 
paragraph (a) of Sec. 1.468A-5 for rules relating to the number of 
nuclear decommissioning funds that a taxpayer can establish).
    (iii) Except as provided by Sec. 1.468A-5 (a)(1)(iv) (relating to 
certain unincorporated organizations that may be taxable as 
corporations), a request for a schedule of ruling amounts must not 
contain a request for a ruling on any other issue, whether the issue 
involves section 468A or another section of the Internal Revenue Code.
    (iv) In the case of an affiliated group of corporations that join in 
the filing of a consolidated return, the common parent of the group may 
request a schedule of ruling amounts for each member of the group that 
possesses a qualifying interest in the same nuclear power plant by 
filing a single submission with the Internal Revenue Service.
    (v) Except as otherwise provided in paragraph (b)(1) of Sec. 
1.468A-8, the Internal Revenue Service shall not provide or revise a 
ruling amount applicable to a taxable year in response to a request

[[Page 349]]

for a schedule of ruling amounts that is filed after the deemed payment 
deadline date (as defined in paragraph (c)(1) of Sec. 1.468A-2) for 
such taxable year. In determining the date when a request is filed, the 
principles of sections 7502 and 7503 shall apply.
    (vi) Except as provided in paragraph (h)(1)(vii) of this section, a 
request for a schedule of ruling amounts shall be considered filed only 
if such request complies substantially with the requirements of this 
paragraph (h).
    (vii)(A) If a request does not comply substantially with the 
requirements of this paragraph (h), the Internal Revenue Service will 
notify the taxpayer of that fact. If the information or materials 
necessary to comply substantially with the requirements of this 
paragraph (h) are provided to the Internal Revenue Service within 30 
days after this notification, the request will be considered filed on 
the date of the original submission. If the information or materials 
necessary to comply substantially with the requirements of this 
paragraph (h) are not provided within 30 days after this notification, 
the request will be considered filed on the date that all information or 
materials necessary to comply with the requirements of this paragraph 
(h) are provided.
    (B) The Internal Revenue Service may waive the requirements of 
paragraph (h)(1)(vii)(A) of this section if the Service determines that 
the electing taxpayer is making a good faith effort to comply with the 
deadline and if the waiver is consistent with the purposes of section 
468A.
    (2) Information required. A request for a schedule of ruling amounts 
must contain the following information:
    (i) The taxpayer's name, address and taxpayer identification number.
    (ii) Whether the request is for an initial schedule of ruling 
amounts, a mandatory review of the schedule of ruling amounts (see 
paragraph (i)(1) of this section) or an elective review of the schedule 
of ruling amounts (see paragraph (i)(2) of this section).
    (iii) The name and location of the nuclear power plant with respect 
to which a schedule of ruling amounts is requested.
    (iv) A description of the taxpayer's qualifying interest in the 
nuclear power plant and the percentage of such nuclear power plant that 
the qualifying interest of the taxpayer represents.
    (v) An identification of each public utility commission that 
establishes or approves rates for the furnishing or sale by the taxpayer 
of electric energy generated by the nuclear power plant, and, for each 
public utility commission identified--
    (A) Whether the public utility commission has determined the amount 
of decommissioning costs to be included in the taxpayer's cost of 
service for ratemaking purposes; and
    (B) Whether a proceeding is pending before the public utility 
commission that may result in an increase or decrease in the amount of 
decommissioning costs to be included in cost of service.
    (vi) For each public utility commission that has determined the 
amount of decommissioning costs to be included in the taxpayer's cost of 
service for ratemaking purposes--
    (A) The amount of decommissioning costs that are to be included in 
the taxpayer's cost of service for each taxable year under the current 
determination and amounts that otherwise are required to be included in 
the taxpayer's income under section 88 and the regulations thereunder;
    (B) A description of the assumptions, estimates and other factors 
that were used in determining the amounts described in paragraph 
(h)(2)(vi)(A) of this section, including each of the following if 
applicable--
    (1) A description of the proposed method of decommissioning the 
nuclear power plant (for example, prompt removal/dismantlement, safe 
storage entombment with delayed dismantlement, or safe storage 
mothballing with delayed dismantlement);
    (2) The estimated year in which substantial decommissioning costs 
will first be incurred;
    (3) The estimated year in which the decommissioning of the nuclear 
power plant will be substantially complete (see paragraph (d)(2) of 
Sec. 1.468A-5 for a definition of substantial completion of 
decommissioning);

[[Page 350]]

    (4) The total estimated cost of decommissioning expressed in current 
dollars (i.e., based on price levels in effect at the time of the 
current determination);
    (5) The total estimated cost of decommissioning expressed in future 
dollars (i.e., based on anticipated price levels when expenses are 
expected to be paid);
    (6) For each taxable year in the period that begins with the year 
specified in paragraph (h)(2)(vi)(B)(2) of this section (``the estimated 
year in which substantial decommissioning costs will first be 
incurred'') and ends with the year specified in paragraph 
(h)(2)(vi)(B)(3) of this section (``the estimated year in which the 
estimated year in which the decommissioning of the nuclear power plant 
will be substantially complete''), the estimated cost of decommissioning 
expressed in future dollars;
    (7) A description of the methodology used in converting the 
estimated cost of decommissioning expressed in current dollars to the 
estimated cost of decommissioning expressed in future dollars;
    (8) The assumed after-tax rate of return to be earned by the amounts 
collected for decommissioning (if two or more after-tax rates of return 
are assumed by the public utility commission, each assumed after-tax 
rate of return and the amounts collected for decommissioning to which 
each assumed after-tax rate of return applies);
    (9) The proposed period over which decommissioning costs will be 
included in the cost of service of the taxpayer and the projected amount 
that will be included in cost of service for each taxable year in the 
proposed period;
    (10) The estimated date on which the nuclear power plant will no 
longer be included in the taxpayer's rate base for ratemaking purposes 
as determined under the ratemaking assumptions that were used to 
determine the last rates (whether interim or final) that were 
established or approved by the applicable public utility commission 
prior to the filing of the current request for a schedule of ruling 
amounts (or a corresponding date in the case of a taxpayer whose 
interest in the nuclear power plant is described in paragraph (b)(2)(ii) 
of Sec. 1.468A-1; see paragraph (e)(4) of this section); and
    (11) The estimated date on which the nuclear power plant will no 
longer be included in the taxpayer's rate base for ratemaking purposes 
as determined under the ratemaking assumptions that were used by the 
applicable public utility commission in establishing or approving rates 
during the first ratemaking proceeding in which the nuclear power plant 
was included in the taxpayer's rate base (or a corresponding date in the 
case of a taxpayer whose interest in the nuclear power plant is 
described in paragraph (b)(2)(ii) of Sec. 1.468A-1; see paragraph 
(e)(4) of this section);
    (C) A copy of such portions of any order or opinion of the public 
utility commission as pertain to the commission's most recent 
determination of the amount of decommissioning costs to be included in 
cost of service; and
    (D) A copy of each engineering or cost study that was relied on or 
used by the taxpayer or the public utility commission in determining the 
amount of decommissioning costs to be included in the taxpayer's cost of 
service under the current determination.
    (vii) For each proceeding pending before a public utility commission 
that may result in an increase or decrease in the amount of 
decommissioning costs to be included in the taxpayer's cost of service--
    (A) A description of the stage of the proceeding;
    (B) The amount of decommissioning costs that are proposed to be 
included in the taxpayer's cost of service for each taxable year;
    (C) A description of the assumptions, estimates and other factors 
that were used in determining the amount of decommissioning costs that 
are proposed to be included in the taxpayer's cost of service for each 
taxable year, including each of the items described in paragraph 
(h)(2)(vi)(B) of this section if applicable; and
    (D) A copy of each engineering or cost study that was relied on or 
used by the taxpayer or the public utility commission in determining the 
amount of decommissioning costs that are proposed to be included in the 
taxpayer's cost of service.

[[Page 351]]

    (viii) A proposed schedule of ruling amounts for each taxable year 
remaining in the funding period as of the date the schedule of ruling 
amounts will first apply.
    (ix) A description of the assumptions, estimates and other factors 
that were used in determining the proposed schedule of ruling amounts, 
including each of the following if applicable--
    (A) The level funding limitation period (as such term is defined in 
paragraph (b)(2) of this section);
    (B) The funding period (as such term is defined in paragraph (c) of 
this section);
    (C) The assumed after-tax rate of return to be earned by the assets 
of the nuclear decommissioning fund;
    (D) The fair market value of the assets (if any) of the nuclear 
decommissioning fund as of the first day of the first taxable year to 
which the schedule of ruling amounts will apply;
    (E) The amount expected to be earned by the assets of the nuclear 
decommissioning fund (based on the after-tax rate of return applicable 
to the fund) over the period that begins on the first day of the first 
taxable year to which the schedule of ruling amounts will apply and ends 
on the last day of the funding period;
    (F) The amount of decommissioning costs allocable to the nuclear 
decommissioning fund (as determined under paragraph (d) of this 
section);
    (G) The total estimated cost of decommissioning (as such term is 
defined in paragraph (d)(2) of this section);
    (H) The taxpayer's share of the total estimated cost of 
decommissioning (as such term is defined in paragraph (d)(3) of this 
section);
    (I) The qualifying percentage (as such term is defined in paragraph 
(d)(4)(i) of this section);
    (J) The estimated period for which the nuclear decommissioning fund 
is to be in effect (as such term is defined in paragraph (d)(4)(ii) of 
this section); and
    (K) The estimated useful life of the nuclear power plant (as such 
term is defined in paragraph (d)(4)(iii) of this section).
    (x) If the request is for a revised schedule of ruling amounts, the 
after-tax rate of return earned by the assets of the nuclear 
decommissioning fund for each taxable year in the period that begins 
with the date of the inital contribution to the fund and ends with the 
first day of the first taxable year to which the revised schedule of 
ruling amounts applies.
    (xi) If applicable, an explanation of the need for a schedule of 
ruling amounts determined on a basis other than the rules of paragraphs 
(a) through (g) of this section and a description of an alternative 
basis for determining a schedule of ruling amounts (see paragraph (a)(5) 
of this section).
    (xii) A chart or table, based upon the assumed after-tax rate of 
return to be earned by the assets of the nuclear decommissioning fund, 
setting forth the years the fund will be in existence, the annual 
contribution to the fund, the estimated annual earnings of the fund and 
the cumulative total balance in the fund.
    (xiii) If the request is for a revised schedule of ruling amounts, a 
copy of the most recently issued schedule of ruling amounts for the 
nuclear power plant to which the request relates that has been issued to 
the taxpayer (or a predecessor in interest) making the request.
    (xiv) If the request for a schedule of ruling amounts contains a 
request, pursuant to Sec. 1.468A-5 (a)(1)(iv), that the Service rule 
whether an unincorporated organization through which the assets of the 
fund are invested is an association taxable as a corporation for federal 
tax purposes, a copy of the legal documents establishing or otherwise 
governing the organization.
    (xv) Any other information required by the Internal Revenue Service 
that may be necessary or useful in determining the schedule of ruling 
amounts.
    (3) Administrative procedures. The Internal Revenue Service may 
prescribe administrative procedures that supplement the provisions of 
paragraph (h) (1) and (2) of this section. In addition, the Internal 
Revenue Service may, in its discretion, waive the requirements of 
paragraph (h) (1) and (2) of this section under appropriate 
circumstances.
    (i) Review and revision of schedule of ruling amounts--(1) Mandatory 
review. (i) Any taxpayer that has obtained a schedule of ruling amounts 
pursuant to paragraph (h) of this section must file

[[Page 352]]

a request for a revised schedule of ruling amounts on or before the 
deemed payment deadline date for the 10th taxable year that begins after 
the taxable year in which the most recent schedule of ruling amounts was 
received. The first taxable year to which the revised schedule of ruling 
amounts applies shall be the 10th taxable year that begins after the 
taxable year in which the most recent schedule of ruling amounts was 
received.
    (ii)(A) Any taxpayer that has obtained a formula or method for 
determining a schedule of ruling amounts for any taxable year under 
paragraph (a)(4) of this section must file a request for a revised 
schedule on or before the earlier of the deemed payment deadline for the 
fifth taxable year that begins after its taxable year in which the most 
recent formula or method was approved or the deemed payment deadline for 
the first taxable year that begins after a taxable year in which there 
is a substantial variation in the ruling amount determined under the 
most recent formula or method. There is a substantial variation in the 
ruling amount determined under the formula or method in effect for a 
taxable year if the ruling amount for the year and the ruling amount for 
any earlier year since the most recent formula or method was approved 
differ by more than 50 percent of the smaller amount.
    (B) Any taxpayer that has determined its ruling amount for any 
taxable year under a formula prescribed by Sec. 1.468A-6 (which 
prescribes ruling amounts for the taxable year in which there is a 
disposition of a qualifying interest in a nuclear power plant) must file 
a request for a revised schedule of ruling amounts on or before the 
deemed payment deadline for its first taxable year that begins after the 
disposition.
    (iii) A taxpayer is required to request a revised schedule of ruling 
amounts for a nuclear decommissioning fund if--
    (A) Any public utility commission that establishes or approves rates 
for the furnishing or sale of electric energy generated by a nuclear 
power plant to which the nuclear decommissioning fund relates--
    (1) Increases the proposed period over which decommissioning costs 
of such nuclear power plant will be included in cost of service for 
ratemaking purposes;
    (2) Adjusts the estimated date on which such nuclear power plant 
will no longer be included in the taxpayer's rate base for ratemaking 
purposes; or
    (3) Reduces the amount of decommissioning costs to be included in 
cost of service for any taxable year;
    (B) The taxpayer's most recent request for a schedule of ruling 
amounts did not provide notice to the Internal Revenue Service of such 
action by the public utility commission; and
    (C) In the case of a taxpayer that determines its schedule of ruling 
amounts under a formula or method obtained under paragraph (a)(4) of 
this section, the item increased, adjusted, or reduced is a fixed 
(rather than a variable) element of that formula or method.
    (iv) If a taxpayer is required to request a revised schedule of 
ruling amounts by reason of an action described in paragraph (i)(1)(iii) 
of this section, the taxpayer must file the request for a revised 
schedule of ruling amounts on or before the deemed payment deadline date 
for the first taxable year in which rates that reflect such action 
become effective. The first taxable year to which the revised schedule 
of ruling amounts applies shall be the first taxable year in which such 
rates become effective.
    (v) A request for a schedule of ruling amounts required by this 
paragraph (i)(1) must be made in accordance with the rules of paragraph 
(h) of this section. If a taxpayer does not properly file a request for 
a revised schedule of ruling amounts by the date provided in paragraph 
(i)(1) (i), (ii) or (iv) of this section (whichever is applicable), the 
taxpayer's ruling amount for the first taxable year to which the revised 
schedule of ruling amounts would have applied and for all succeeding 
taxable years until a new schedule is obtained shall be zero, unless, in 
its discretion, the Internal Revenue Service provides otherwise in such 
new schedule of ruling amounts.

[[Page 353]]

    (vi) See paragraph (f)(3) of Sec. 1.468A-2 for the application of 
the rules in paragraph (i)(1) (iii), (iv), and (v) of this section in 
the case of certain retroactive adjustments to interim rate orders.
    (2) Elective review. Any taxpayer that has obtained a schedule of 
ruling amounts pursuant to paragraph (h) of this section can request a 
revised schedule of ruling amounts. Such a request must be made in 
accordance with the rules of paragraph (h) of this section; thus, the 
Internal Revenue Service shall not provide a revised ruling amount 
applicable to a taxable year in response to a request for a schedule of 
ruling amounts that is filed after the deemed payment deadline date for 
such taxable year (see paragraph (h)(1)(vi) of this section).
    (3) Determination of revised schedule of ruling amounts. A revised 
schedule of ruling amounts for a nuclear decommissioning fund shall be 
determined under this section without regard to any schedule of ruling 
amounts for such nuclear decommissioning fund that was issued prior to 
such revised schedule. Thus, a ruling amount specified in a revised 
schedule of ruling amounts for any taxable year in the level funding 
limitation period can be less than one or more ruling amounts specified 
in a prior schedule of ruling amounts for a prior taxable year.
    (j) Special rule permitting payments to a nuclear decommissioning 
fund before receipt of an initial or revised ruling amount applicable to 
a taxable year. (1) If an electing taxpayer has filed a timely request 
for an initial or revised ruling amount for a taxable year beginning on 
or after January 1, 1987, and does not receive the ruling amount on or 
before the deemed payment deadline date for such taxable year, the 
taxpayer may make a payment to a nuclear decommissioning fund on the 
basis of the ruling amount proposed in the taxpayer's request. Thus, 
under the preceding sentence, an electing taxpayer may make a payment to 
a nuclear decommissioning fund for such taxable year that does not 
exceed the lesser of--
    (i) The cost of service amount applicable to the nuclear 
decommissioning fund for such taxable year; or
    (ii) The ruling amount proposed by the taxpayer for such taxable 
year in a timely filed request for a schedule of ruling amounts.
    (2) If an electing taxpayer makes a payment to a nuclear 
decommissioning fund for any taxable year pursuant to paragraph (j)(1) 
of this section and the ruling amount that is provided by the Internal 
Revenue Service is greater than the ruling amount proposed by the 
taxpayer for such taxable year, the taxpayer is not allowed to make an 
additional payment to the fund for such taxable year after the deemed 
payment deadline date for such taxable year.
    (3) If--(i) An electing taxpayer makes a payment to a nuclear 
decommissioning fund for any taxable year pursuant to paragraph (j)(1) 
of this section,
    (ii) The ruling amount that is provided by the Internal Revenue 
Service is less than the ruling amount proposed by the taxpayer for such 
taxable year, and
    (iii) As a result, there is an excess contribution (as defined in 
paragraph (c)(2)(ii) of Sec. 1.468A-5) for such taxable year,

Then the amount of the excess contribution is not deductible (see 
paragraph (b)(1) of Sec. 1.468A-2) and must be withdrawn by the 
taxpayer pursuant to the rules of paragraph (c)(2)(i) of Sec. 1.468A-5. 
Thus, an electing taxpayer that files a return based on a payment made 
pursuant to paragraph (j)(1) of this section should file an amended 
return if an excess contribution results when the ruling amount is 
issued for such taxable year.

[T.D. 8184, 53 FR 6808, Mar. 3, 1988, as amended by T.D. 8461, 57 FR 
62199, Dec. 30, 1992; T.D. 8580, 59 FR 66474, Dec. 27, 1994; 60 FR 8932, 
Feb. 16, 1995; T.D. 8758, 63 FR 2894, Jan. 20, 1998]