[Code of Federal Regulations]
[Title 26, Volume 16]
[Revised as of April 1, 2004]
From the U.S. Government Printing Office via GPO Access
[CITE: 26CFR41.4482(b)-1]

[Page 16-18]
 
                       TITLE 26--INTERNAL REVENUE
 
    CHAPTER I--INTERNAL REVENUE SERVICE, DEPARTMENT OF THE TREASURY 
                               (CONTINUED)
 
PART 41_EXCISE TAX ON USE OF CERTAIN HIGHWAY MOTOR VEHICLES--Table of Contents
 
         Subpart B_Tax on Use of Certain Highway Motor Vehicles
 
Sec. 41.4482(b)-1  Definition of taxable gross weight.

    (a) Actual unloaded weight--(1) In general. Actual unloaded weight 
means the empty (or tare) weight of the truck, truck-tractor, or bus, 
fully equipped for service.
    (2) Trucks and truck-tractors. A truck or truck-tractor fully 
equipped for service includes the body (whether or not designed and 
adapted primarily for transporting cargo, as for example, concrete 
mixers); all accessories; all equipment attached to or carried on such 
truck or truck-tractor for use in connection with the movement of the 
vehicle by means of its own motor or for use in the maintenance of the 
vehicle; and a full complement of lubricants, fuel, and water. It does 
not include the driver, any equipment (not including the body) attached 
to or carried on the vehicle for use in handling, protecting, or 
preserving cargo, or any

[[Page 17]]

special equipment (such as an air compressor, crane, specialized 
oilfield machinery, etc.) mounted on the vehicle for use on construction 
jobs, in oilfield operations, etc.
    (3) Buses. A bus fully equipped for service includes the body; all 
accessories; all equipment attached to or carried on such bus for use in 
connection with the movement of the vehicle by means of its own motor, 
for use in the maintenance of the vehicle, or for the accommodation of 
passengers or others (such as air conditioning equipment and sanitation 
facilities, etc.); and a full complement of lubricants, fuel, and water. 
It does not include the driver.
    (b) Determination of taxable gross weight--(1) In general. The 
taxable gross weight of a highway motor vehicle is the sum of the actual 
unloaded weight of the vehicle fully equipped for service, the actual 
unloaded weight of any semitrailers or trailers fully equipped for 
service customarily used in combination with the vehicle, and the weight 
of the maximum load customarily carried on the vehicle and on any 
semitrailers or trailers customarily used in combination with the 
vehicle. In the case of a highway motor vehicle that is registered in at 
least one State that requires a declaration of gross weight to be stated 
as a specific amount for any purpose (including proportional or prorate 
registration or the payment of any other fees or taxes), the taxable 
gross weight of such vehicle must be no less than the highest gross 
weight declaration (or combined gross weight declaration in the case of 
a tractor-trailer or truck-trailer combination) made by the registrant 
in any State with respect to such vehicle. If a highway motor vehicle is 
registered in at least one State that requires vehicles to register on 
the basis of gross weight and such vehicle is not registered in any 
State that requires a declaration of gross weight to be stated as a 
specific amount by the registrant, the taxable gross weight of such 
vehicle must fall within the highest gross weight category of such State 
for which such vehicle is registered during the taxable period. 
Declarations of weight made in order to obtain special temporary travel 
permits which allow a vehicle to, (i) operate in a State in which the 
vehicle is not registered or prorated, (ii) operate at more than a 
State's maximum statutory weight limit, or (iii) operate at more than 
the weight that the vehicle is registered in a State, shall not be 
considered in determining the taxable gross weight of a vehicle.
    (2) Buses. For purposes of the tax imposed by section 4481(a), the 
taxable gross weight of a bus shall be the sum of the weights referred 
to in paragraph (b)(1) of this section except that ``the weight of the 
maximum load customarily carried'' on a bus shall be equal to 150 pounds 
times the number of units of seating capacity provided for passengers 
and driver.
    (c) Examples. The provisions of this section may be illustrated by 
the following examples:

    Example (1). A is the owner of a truck-tractor. On January 1, 1985, 
A registers the truck-tractor in three states--X, Y, and Z. For purposes 
of registering the vehicle in State X, A declares the gross operating 
weight of his truck-tractor to be 60,000 pounds. The declaration of the 
gross weight of the vehicle at 50,000 pounds places A's truck-tractor in 
the State X registration category of 55,000 to 62,000 pounds gross 
weight. Thus, the registered weight of A's vehicle in State X is 62,000 
pounds. At the same time as A registers the vehicle in State X, A also 
proportionally registers the vehicle under the IRP in State Y. A uses 
the same declared gross weight of 60,000 pounds for purposes of the 
State Y proportional registration. Registration in State Y at this 
declared gross weight places A's truck-tractor in the State Y gross 
weight registration category of 58,000 to 68,000 pounds. Finally, A 
registers the truck-tractor in State Z. Registration of vehicles in 
State Z is based on the unladen weight of the vehicle. During the 
taxable period beginning on July 1, 1985, A's truck-tractor is not 
registered in any other state. For the taxable period beginning on July 
1, 1985, A must declare a taxable gross weight of no less than 60,000 
pounds for purposes of the tax imposed by section 4481(a) because that 
is the highest declared gross weight for state registration or other 
purposes. Should A declare to any State agency a higher gross operating 
weight with respect to the truck-tractor during the same taxable period 
(except for a special temporary permit), A would then be liable for 
additional tax as determined under paragraph (c)(3) of Sec. 41.4481-1.

[[Page 18]]

    Example (2). Assume the same facts as in example (1), except that on 
one occasion during the taxable period, A was issued a special 2-day 
permit to use his truck-tractor in State Y to haul a load which would 
give A's unit a total gross weight of 80,000 pounds. A may still declare 
the taxable gross weight of his unit to be no less than 60,000 pounds 
because special permits to haul heavier loads on a temporary basis are 
not considered in determining the taxable gross weight of a vehicle.
    Example (3). C owns and has registered in his name 2 trucks which 
are identical in all respects and which are used to carry the same type 
of load. The first vehicle is registered only in State X at a registered 
weight of 73,000 pounds based on a declared gross weight of 70,000 
pounds. The second vehicle is registered only in State Y at a registered 
weight of 68,000 pounds based on a declared gross weight of 65,000 
pounds. No other declarations of gross weight are made with respect to 
either vehicle. For purposes of the Federal heavy vehicle use tax, the 
taxable gross weight of the vehicle registered in State X may be 
declared at no less than 70,000 pounds and the taxable gross weight of 
the vehicle registered in State Y may be declared at no less than 65,000 
pounds even though the vehicles are identical.


[T.D. 6216, 21 FR 9645, Dec. 6, 1956, as amended by T.D. 6743, 29 FR 
7931, June 23, 1964; T.D. 7011, 34 FR 7448, May 8, 1969; T.D. 8027, 50 
FR 21247, May 23, 1985; T.D. 8879, 65 FR 17153, Mar. 31, 2000]