(a) In general. Tax is imposed on the use during a taxable period of any registered highway motor vehicle that (together with the semitrailers and trailers customarily used in connection with highway motor vehicles of the same type as such highway motor vehicle) has a taxable gross weight of at least 55,000 pounds.

(b) Rate of tax. For the rate of tax generally, see section 4481(a). For the rate of tax for certain vehicles used in logging, see section 4483(e). For a special rule for the taxable period in which the tax terminates, see section 4482(d).

(c) Computation of tax—(1) In general. Except as otherwise provided in this paragraph (c), the tax on the use of a particular highway motor vehicle for a taxable period is computed as follows:

(i) For vehicles with a taxable gross weight of at least 55,000 pounds, but not over 75,000 pounds, add to $100 an amount equal to $22 for each 1,000 pounds (or fraction thereof) in excess of 55,000 pounds; and

(ii) For vehicles with a taxable gross weight over 75,000 pounds, the tax is $550.

(2) Certain prorated taxable periods. If the first taxable use of a particular highway motor vehicle is made after the first month of the taxable period, the tax on the use of such vehicle for such taxable period is computed by multiplying the amount of tax that would be due for a full taxable period as computed under paragraph (c)(1) of this section, by a fraction. Such fraction shall have as its numerator the number of months in the taxable period beginning with the month of first taxable use and as its denominator the number of months in the entire taxable period. For purposes of determining the fraction, any part of a month is counted as a full month. (See example (2) of paragraph (e) of this section.)

(3) Increase in taxable gross weight during the taxable period. If the taxable gross weight of a vehicle increases during the month in which the vehicle is first used in a taxable period, the tax for the vehicle for the taxable period is computed on the basis of the increased weight. If the taxable gross weight of a vehicle increases after the month in which the vehicle was first used in a taxable period, the additional tax liability, if any, that results from the increased weight is calculated according to the following formula:

(4) Prorated taxable period for sold, destroyed, or stolen vehicles—(i) In general. The tax on a taxpayer's use of a highway vehicle for a taxable period is determined under paragraph (c)(4)(ii) of this section if—

(A) The vehicle is destroyed or stolen before the first day of the last month in the taxable period and is not later used by the taxpayer during the period; or

(B) The taxpayer sells the vehicle before the first day of the last month in the taxable period and does not later use the vehicle during the period.

(ii) Computation of tax. If the tax on a taxpayer's use of a highway vehicle for a taxable period is determined under this paragraph (c)(4)(ii), the tax is computed by multiplying the amount of tax that would be due for a full taxable period, as computed under paragraph (c)(1) of this section, by a fraction. The fraction has as its numerator the number of months in the period from the first day of the month in the period in which the first taxable use of the highway motor vehicle occurs to and including the last day of the month in which the highway motor vehicle was sold, destroyed, or stolen, and as its denominator the number of months in the entire taxable period. (See paragraph (d) Example (3)(i) of this section.)

(iii) Overpayment. If a taxpayer's liability for the tax on the use of a highway vehicle for a taxable period is determined under paragraph (c)(4)(ii) of this section, any tax the taxpayer paid under section 4481(a) on the use of the vehicle for such period in excess of the tax calculated under paragraph (c)(4)(ii) of this section is an overpayment of tax.

(iv) Definition of destroyed vehicle. For purposes of this paragraph (c)(4), a highway motor vehicle is destroyed if the vehicle is damaged due to an accident or other casualty to such an extent that it is not economical to rebuild.

(v) Form and content of claim. A claim for refund of an overpayment described in paragraph (c)(4)(iii) of this section must be made on Form 8849, “Claim for Refund of Excise Taxes” (or such other form as the Commissioner may designate) in accordance with the instructions for that form. A claim for a credit must be made on Form 2290, “Heavy Highway Vehicle Use Tax Return” (or such other form as the Commissioner may designate) in accordance with the instructions for that form. A claim for refund or credit for any vehicle must include—

(A) The vehicle identification number and taxable gross weight of the vehicle;

(B) The date of the sale, destruction, or theft of the vehicle; and

(C) If the vehicle was sold, the name and address of the purchaser of the vehicle.

(vi) Tax on buyer's use of second-hand vehicles. If a vehicle is sold during the taxable period and a credit or refund of the tax imposed by section 4481 is allowable upon the sale under paragraph (c)(4)(iii) of this section, tax is imposed on the use of the vehicle after the sale and before the end of the taxable period. (See paragraph (c)(4)(vii) of this section for the rules regarding the computation of tax after the sale and before the end of the taxable period.)

(vii) Computation of tax on second-hand vehicles. The tax under paragraph (c)(4)(vi) of this section on the use of a vehicle after a sale upon which a credit or refund is allowable is computed by multiplying the amount of tax that would be due for a full taxable period as computed under paragraph (c)(1) of this section by a fraction. The fraction has as its numerator the number of months in the period from the first day of the month in which the first taxable use of the vehicle after the sale occurs (the first day of the month after such month if the first taxable use after the sale occurs in the month of the sale) through the end of the taxable period, and as its denominator the number of months in the entire taxable period. (See paragraph (d) Example (3)(ii) of this section.)

(5) Decrease in taxable gross weight, discontinued use, or converted use. The computation of the tax is not affected, and no right to a credit or refund of any tax paid under section 4481 arises, if in any taxable period—

(i) The taxable gross weight of a highway motor vehicle is decreased;

(ii) The use of a highway motor vehicle is discontinued (for reasons other than sale, destruction, or theft as described in paragraph (c)(4) of this section); or

(iii) The highway motor vehicle is converted to a use that is exempt from the tax imposed by section 4481(a).

(d) Examples. The application of §§ 41.4481-1, 41.4481-2, and 41.4482(c)-1(c) may be illustrated by the following examples:

(e) Effective/applicability date. This section applies on and after July 1, 2015. For rules applicable before that date, see 26 CFR 41.4481-1 (revised as of April 1, 2014).

(a) In general. (1)(i) A person is liable for the tax imposed by section 4481 with respect to the use of a highway motor vehicle in a taxable period if the vehicle is registered in the person's name—

(A) At the time of the first use of the vehicle in the taxable period;

(B) In the case of a vehicle under a suspension of tax described in § 41.4483-3(a), at the time the use on the public highways during the taxable period exceeds 5,000 miles (7,500 miles for agricultural vehicles);

(C) At the time that an increase in the taxable gross weight of the vehicle results in an additional tax liability (as computed under § 41.4481-1(c)(3)) if the increase occurs after the month in which the vehicle was first used in the taxable period; or

(D) At the time of any use during the taxable period that is after the first use during the period, but only to the extent that the tax has not previously been paid.

(ii) In any case in which more than one person is liable for the tax for a taxable period, the liability of all persons is satisfied to the extent that the tax is paid by any person liable for the tax.

(2) If a vehicle is sold during the taxable period and a credit or refund is allowable upon the sale under § 41.4481-1(c)(4)(iii), paragraph (a)(1) of this section is applied with the following modifications:

(i) For purposes of determining the person liable for the tax determined under § 41.4481-1(c)(4)(ii), each reference to a taxable period in paragraph (a)(1) of this section is treated as a reference to the period that begins on the first day of the taxable period in which the vehicle is sold and ends on the date of sale.

(ii) For purposes of determining the person liable for the tax determined under § 41.4481-1(c)(4)(vi), each reference to a taxable period in paragraph (a)(1) of this section is treated as a reference to the period that begins on the date of the sale and ends on the last day of the taxable period in which the vehicle is sold.

(3) The application of paragraph (a) of this section may be illustrated by Examples (3) and (4) in § 41.4481-1(d).

(b) Evidence of prior use of second-hand vehicle. Every person who, at any time in the taxable period, acquires and has registered in his name a secondhand highway motor vehicle shall obtain and keep as a part of his records evidence, which he believes to be true, showing whether there was or was not a taxable use of such vehicle at any time in such taxable period prior to the time when the vehicle was registered in his name. Such person shall also obtain and keep as evidence a statement from the transferor as to whether there was in effect, at the time the vehicle was acquired, a suspension under § 41.4483-3(a) of the tax imposed by section 4481(a). The evidence may take the form of a written statement, signed and dated by the person from whom the vehicle was acquired, showing whether there was or was not a prior taxable use of the vehicle and whether there was a suspension of tax in the taxable period. If the vehicle is acquired from a dealer in highway motor vehicles, the statement may be obtained from such dealer or from the person from whom the dealer acquired such vehicle. If evidence is not obtained showing whether there was or was not a prior taxable use of such vehicle and whether there was a suspension of tax in the taxable period, such person shall keep as a part of his records a written statement of the reason why he was unable to obtain such evidence. For provisions relating to penalties for aiding and abetting an understatement of tax liability, see section 6701 of the Internal Revenue Code.

(c) Effective/applicability date. This section applies on and after July 1, 2015. For rules applicable before that date, see 26 CFR 41.4481-2 (revised as of April 1, 2014).

(a) For purposes of the regulations in this part, the term “registered” when used in reference to a highway motor vehicle means—

(1) Registered under the law of any State or Territory of the United States, the District of Columbia, or contiguous foreign country, or

(2) Required to be registered under the law of any State or Territory of the United States or contiguous foreign country in which such highway motor vehicle is operated or situated or, in case the vehicle is operated or situated in the District of Columbia, under the law of the District of Columbia.

(b) Any highway motor vehicle which, at any time in the taxable period, is registered both in the name of the owner of the vehicle and in the name of any other person, is considered, for purposes of the regulations in this part, to be registered, at such time, solely in the name of the owner of the vehicle.

(a) Highway motor vehicle. The term “highway motor vehicle” means any vehicle that is both:

(1) A vehicle propelled by means of its own motor, whether such motor is powered by gasoline, diesel fuel, special motor fuels, electricity, or otherwise, and

(2) A “highway vehicle” as defined in § 48.4061(a)-1(d) of this chapter.

(b) Treatment of certain excluded vehicles. Although trailers and semitrailers used in combination with highway trucks or truck-tractors are not vehicles the use of which is subject to the tax imposed by section 4481(a), trailers and semitrailers customarily used in combination with highway trucks or truck-tractors are taken into account in determining the taxable gross weight of the highway motor vehicle under § 41.4482(b)-1, which is the base of the tax.

(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 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:

(a) State. State includes any State, any political subdivision of a State, the District of Columbia, and, to the extent provided by section 7871, any Indian tribal government.

(b) Taxable period. For the definition of taxable period, see section 4482(c).

(c) Use. The term “use”, as used in the regulations in this part with reference to a highway motor vehicle, means the use of the highway motor vehicle on the public highways in the United States, that is, operation of the vehicle, by means of its own motor, on any roadway (whether a Federal highway, State highway, city street, or otherwise) in the United States which is not a private roadway. Thus, for purposes of the tax, there is no use of a highway motor vehicle while the vehicle is in “dead storage”. The term “use” does not include operation of a new highway motor vehicle on a public highway in the United States if such operation is merely for the purpose of transporting the vehicle from the point of manufacture or assembly to the consumer, whether direct or with intermediate deliveries to such points as are involved in the distribution process. For example, operation of a new vehicle for the purpose of delivering it from the factory to a branch establishment of the manufacturer, or from the factory or branch establishment to a dealer, distributor, or consumer, does not constitute use of the vehicle within the meaning of the regulations in this part; likewise, the further operation of the vehicle by a dealer or distributor for the purpose of delivering the vehicle to a consumer does not constitute use of the vehicle. Similarly, the operation of a secondhand highway motor vehicle by a dealer or distributor for the purpose of delivering the vehicle to a purchaser does not constitute use of the vehicle within the meaning of the regulations in this part. Furthermore, the term “use” does not include operation of a new or secondhand highway motor vehicle, if such operation is exclusively for the purpose of demonstration of the vehicle by a dealer in, or distributor of, new or secondhand highway motor vehicles. Operation of a highway motor vehicle on a private roadway, or other private property, does not constitute use of the vehicle within the meaning of the regulations in this part.

(d) Customarily used. A semitrailer or trailer is treated as customarily used in connection with a highway motor vehicle if the vehicle is equipped to tow the semitrailer or trailer.

Use of a highway motor vehicle by a State is exempt from the tax imposed by section 4481. For this purpose, the term use by a State means the operation by a State on the public highways in the United States of any highway motor vehicle, whether or not such highway motor vehicle is owned by the State.

(a) In general. Use in any taxable period, or part thereof, of any bus of the transit type by any person who is engaged in the operation of a transit system is exempt from the tax, if such person meets the 60-percent passenger fare revenue test provided for in paragraph (e) of this section, for the applicable period prescribed in paragraph (c) of this section as the test period for such person for such system for such taxable period, or part thereof.

(b) Buses of the transit type. The term “transit type”, when used in the regulations in this part with reference to a bus, means the type of bus which is designed for the mass transportation of persons within an urban area, as distinguished from the intercity-type bus. A transit-type bus is ordinarily distinguishable from an intercity-type bus by comparison of seats, doors, and baggage facilities. The transit-type bus usually has straight-back seats of the bench type, while the intercity-type bus generally has seats which either can be reclined or are in fact permanently fixed in a reclining position. The transit-type bus is more likely to have an accordion or folding-type door at the front of the bus, and often has a second door in the middle or at the rear for passengers to leave the bus, as opposed to the emergency-type rear door which may or may not be included in the intercity-type bus. The typical transit-type bus does not have facilities for storing baggage whereas the typical intercity-type bus has facilities for storing baggage in a compartment underneath the floor of the bus or in overhead racks, or both. Other characteristics which may be taken into account in distinguishing a transit-type bus from an intercity-type bus include gear ratios, acceleration and maximum speed, and aisle space for standees. The transit-type bus ordinarily has a lower gear ratio to provide for quick starts and because, in general, buses of this type are operated at low speeds. The intercity-type bus ordinarily has a higher gear ratio and can be operated at much higher speeds. The transit-type bus usually has wider aisles, with overhead straps or bars to accommodate standees.

(c) Test period. (1) In the case of any person who is engaged in the operation of a transit system at any time in the calendar quarter immediately preceding July 1 of any taxable period, the test period for such system for such taxable period shall be such calendar quarter. However, if passenger fare revenue from scheduled service described in paragraph (e) of this section was derived on less than 30 days during such calendar quarter from operation of such system, the test period for such system for such taxable period shall be the last preceding test period for such system. If such system has no preceding test period, then the test period for such system for such taxable period shall be the calendar quarter beginning with July 1 of such taxable period.

(2) Except as otherwise provided in subparagraph (3) of this paragraph, in the case of any person who commences operation of a transit system at any time on or after July 1 of any taxable period the test period for such system for that part of such taxable period beginning with the first day on which such operation was commenced shall be the calendar quarter in which falls such first day. However, if passenger fare revenue from scheduled service described in paragraph (e) of this section was derived on less than 30 days during such calendar quarter from operation of such system, the test period for such system for such taxable period shall be the following calendar quarter.

(3) In the case of any person who commences operation of a transit system at any time in the last calendar quarter to which the tax imposed by section 4481 applies, such last calendar quarter shall be the test period for such transit system regardless of the number of days in which passenger fare revenue is derived in such calendar quarter.

(d) Transit system. The term “transit system”, as used in the regulations in this part, means any system for furnishing scheduled common carrier public passenger land transportation service along regular routes.

(e) 60-percent passenger fare revenue test. For purposes of this section, a person engaged in the operation of a transit system meets the 60-percent passenger fare revenue test, for the applicable test period prescribed in this section, if:

(1) During such test period such person derived passenger fare revenue from the operation of such system, and

(2) At least 60 percent of the total of such passenger fare revenue derived by such person during such test period was attributable to (i) amounts paid for transportation which do not exceed 60 cents, (ii) amounts paid for commutation or season tickets for single trips of less than 30 miles, or (iii) amounts paid for commutation tickets for one month or less. In determining the total of such passenger fare revenue, revenue from sources such as charter fees, rentals of property, advertising receipts, etc., is not taken into account.

(f) Examples. Application of this section may be illustrated by the following examples:

(a) Suspension of tax—(1) In general. Liability for the tax imposed by section 4481(a) is suspended during a taxable period if it is reasonable to expect that the vehicle will be used for 5,000 or fewer miles on public highways during such taxable period and the owner furnishes in the time and manner required the information required under paragraph (a)(2) of this section. See paragraph (g) of this section regarding special rules for agricultural vehicles. See § 41.4482(c)-1(c) for the meaning of “use” on the public highways.

(2) Information to be supplied in support of suspension of tax. The owner of a highway motor vehicle who reasonably expects that the vehicle will be used for 5,000 or fewer miles on public highways during a taxable period shall furnish on the first Form 2290 filed during the taxable period for such motor vehicle, such information as is required by the Form in order to support the suspension of tax under paragraph (a) of this section.

(b) Cessation of suspension from tax. If a highway motor vehicle on which the tax under section 4481(a) is suspended for a particular taxable period under paragraph (a)(1) of this section is used for more than 5,000 miles on public highways during such taxable period, the owner of the vehicle is liable for the tax for the entire taxable period in accordance with section 4481(a).

(c) Exemption. If at the end of any taxable period during which the tax under section 4481(a) on a highway motor vehicle was suspended under paragraph (a)(1) of this section the vehicle has not been used for more than 5,000 miles on public highways, the vehicle shall be exempt from the tax for that taxable period. The owner of the vehicle shall verify that the vehicle was used for less than 5,000 miles in such ended taxable period on the first Form 2290 filed for the next taxable period.

(d) Examples. The provisions of this section may be illustrated by the following examples:

(e) Credit or refund of tax for highway motor vehicle used 5,000 or fewer miles. (1) If a highway motor vehicle on which the tax imposed by section 4481(a) has been paid for a given taxable period is used for 5,000 or fewer miles on public highways during such taxable period, the person who paid the tax may file a claim for refund of an overpayment of the tax at the end of the taxable period. Claims for refunds of tax made under this paragraph (e) shall be filed in the same manner as claims for refunds filed under § 41.4481-1(d). Refunds of tax made under this paragraph (e) shall be without interest.

(2) Any person entitled to claim a refund of tax under paragraph (e)(1) of this section may, in lieu of claiming a refund of such tax, claim credit for such tax on the first Form 2290 filed for the next taxable period.

(f) Relief from liability for tax under certain circumstances. If the tax imposed by section 4481(a) on a highway motor vehicle is suspended for any taxable period under paragraph (a) of this section and the vehicle is transferred while the suspension is in effect, the transferor will not be liable for any tax on such vehicle for such taxable period if such transferor furnishes a statement to the transferee on which is included the transferor's name, address and taxpayer identification number, the vehicle identification number, the date of transfer of the vehicle, the number of miles the vehicle has been used on the public highways during the taxable period, the odometer reading at the time of the transfer, and the name, address and taxpayer identification number of the transferee. The suspension from tax under paragraph (a) continues until the vehicle is used on the public highways for more than 5,000 miles during the taxable period (including use by the transferor for the portion of the taxable period prior to the transfer). If the transferor has furnished the statement required in this paragraph (f), the transferee and not the transferor is liable for the entire tax under section 4481(a) for the taxable period in which the transfer was made. If the transferor has not furnished such statement to the transferee, then the transferor is also liable for the tax on the use of such vehicle for such taxable period (determined in the case of a transfer described in § 41.4481-1(c)(4)(i) under § 41.4481-1(c)(4)(ii)) to the extent that the tax has not been previously paid. See paragraph (b) of this section relating to cessation of suspension from tax and § 41.6011(a)-1(a)(3) for a requirement that certain transferees described in this paragraph (f) must file a return.

(g) Special rule for agricultural vehicles—(1) In general. In applying the provisions of this section to an agricultural vehicle, “7,500” shall be substituted for “5,000” each place it appears in paragraphs (a) through (f) of this section.

(2) Meaning of terms—(i) Agriculture vehicle. An agricultural vehicle is any highway motor vehicle—

(A) Used (or expected to be used) primarily for farming purposes, and

(B) Registered (under the laws of the State or States in which such vehicle is required to be registered) as a highway motor vehicle used for farming purposes.

(ii) Farming purposes. For purposes of this section, “farming purposes” means the transporting of any farm commodity to or from a farm, or the use directly in agricultural production.

(iii) Farm commodity. A “farm commodity” is any agricultural or horticultural commodity, feed, seed, fertilizer, livestock, bees, poultry, fur-bearing animals, or wildlife. A farm commodity does not include a commodity which has been changed by a processing operation from its raw or natural state. For example, juice which has been extracted from fruits or vegetables is not a farm commodity for purposes of this paragraph (g).

(iv) Farm. The term “farm” includes stock (including feed yards for fattening cattle), dairy, poultry, fruit, fur-bearing animal, and truck farms, plantations, ranches, nurseries, ranges, orchards, and such greenhouses and other similar structures as are used primarily for the raising of any agricultural or horticultural commodity. Greenhouses and other similar structures used primarily for purposes other than the raising of agricultural or horticultural commodities (for example, display, storage, or fabrication of wreaths, corsages, and bouquets) do not constitute “farms”.

(v) Agricultural production—(A) In general. A highway motor vehicle is considered to be used directly in agricultural production only if it is used as indicated in the following paragraphs.

(B) Use of a highway motor vehicle in connection with cultivating, raising, and harvesting. A highway motor vehicle is considered to be used directly in agricultural production if such vehicle is used in connection with cultivating the soil, or raising or harvesting any agricultural or horticultural commodity, including the raising, shearing, feeding, caring for, training and management of livestock, bees, poultry, and fur-bearing animals and wildlife. A highway motor vehicle which is used in connection with operations such as canning, freezing, packaging, or other processing operations will not be considered to be used directly in agricultural production.

(C) Use of a highway motor vehicle in connection with planting, cultivation, caring for, cutting, etc., of trees. A highway motor vehicle is used directly for agricultural production if it is used in connection with planting, cultivating, caring for, or cutting of trees, or in connection with the preparation (other than milling) of trees for market; but only if such operations are incidental to farming operations. These farming operations include felling trees and cutting them into logs or firewood, but do not include sawing logs into lumber, chipping, or other milling operations. The operations specified in this paragraph (g)(2)(v)(C) will be considered “incidental to farming operations” only if they are of a minor nature in comparison with the total farming operations involved. Therefore, a treefarmer or timbergrower may not claim that a highway motor vehicle used in that trade or business is used directly in agricultural production.

(D) Use of a highway motor vehicle in connection with the operation, management, conservation, improvement, or maintenance of a farm. A highway motor vehicle is used directly for agricultural production if it is used in connection with the operation, management, conservation, improvement, or maintenance of a farm and its tools and equipment. Examples of these operations include clearing land, repairing fences and farm buildings, building terraces or irrigation ditches, cleaning tools or farm machinery, painting, and other activities which contribute in any way to the conduct of a farm as such, as distinguished from any other enterprise in which the owner of the highway motor vehicle may be engaged.

(3) Mileage on farm not counted toward 7,500 mile limit. For purposes of this section, the number of miles which a highway motor vehicle is driven on a farm and not on the public highways shall not be taken into account when determining whether the vehicle's mileage is in excess of 7,500 miles. Accurate records should be kept by taxpayers of the number of miles that a highway motor vehicle is operated on a farm.

(h) Owner. For purposes of this section the term “owner” means, with respect to any highway motor vehicle, the person described in section 4481(b).

(i) Effective/applicability date. This section applies on and after July 1, 2015. For rules applicable before that date, see 26 CFR 41.4483-3 (revised as of April 1, 2014).

Any exemption from the tax on the use of a highway motor vehicle has application only with respect to the use of such highway motor vehicle and not with respect to the highway motor vehicle as such. Furthermore, such exemption is subject to those provisions of paragraph (c) of § 41.4481-1 relating to proration of the tax and to the effect of an exempt use of a highway motor vehicle after a taxable use has been made. Thus, if a taxable use is made of a highway motor vehicle at any time in a taxable period, the tax is imposed on the use of such vehicle for such taxable period, computed from the first day of the month in which such taxable use occurred, even though at some time in the same taxable period, before or after such taxable use occurred, the use of the vehicle may have been, or may be, exempt. For example, if a highway motor vehicle is operated exclusively by a State in the period July 1 through September 10 of a taxable period, use of such vehicle in such period is exempt from the tax. However, if a taxable use of the vehicle is made on September 11 of such taxable period, the tax imposed on the use of such vehicle for such taxable period is computed from September 1. On the other hand, if a taxable use of the vehicle is made at any time in July of the taxable period, the tax imposed on the use of such vehicle for such taxable period is computed from July 1, even though the vehicle may be operated exclusively by a State in every other month of such period.

(a) In general. The tax imposed by section 4481 shall be reduced by 25 percent in the case of a truck used in logging.

(b) Truck used in logging. The term “truck used in logging” means any highway motor vehicle which—

(1) Is used exclusively during the taxable period for the transportation, to and from a point located on a forested site, of products harvested from such forested site, and

(2) Is registered (under the laws of the State or States in which such vehicle is required to be registered) as a highway motor vehicle used exclusively in the transportation of harvested forest products.