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Pub. 378, Fuel Tax Credits and Refunds 2005 Tax Year

1. Fuels

Federal excise taxes are imposed on certain fuels. This chapter defines the fuels and lists the nontaxable uses of each fuel. The nontaxable uses are defined in Chapter 2.

Type of use table.   The nontaxable uses listed under each fuel are from Table 1–1. The first column of the table is the number you enter on Form 4136, Form 8849, or Schedule C (Form 720) for that type of use. For type of use 2, the mobile machinery parenthetical applies only to Form 8849 and Form 720.

Table 1–1. Type of Use Table

No. Type of Use (See Chapter 2 for definition of terms)
1 On a farm for farming purposes
2 Off-highway business use (for business use other than in a highway vehicle registered or required to be registered for highway use) (other than use in mobile machinery)
3 Export
4 In a boat engaged in commercial fishing
5 In certain intercity and local buses
6 For diesel fuel or kerosene in a qualified local bus
7 In a bus transporting students and employees of schools (school buses)
8 For diesel fuel and kerosene (other than aviation-grade kerosene) used other than as a fuel in the propulsion engine of a train or diesel-powered highway vehicle (but not off-highway business use)
9 In foreign trade
10 Certain helicopter and fixed-wing air ambulance uses
11 For aviation-grade kerosene used other than as a fuel in the propulsion engine of an aircraft
12 In a highway vehicle owned by the United States that is not used on a highway
13 Exclusive use by a nonprofit educational organization
14 Exclusive use by a state, political subdivision of a state, or the District of Columbia
15 In an aircraft or vehicle owned by an aircraft museum
16 In military aircraft
17 For use in the production of special fuels

Gasoline and Aviation Gasoline

Gasoline means all products commonly or commercially known or sold as gasoline with an octane rating of 75 or more that are suitable for use as a motor fuel. Gasoline includes any gasoline blend other than:

  • Qualified ethanol and methanol fuel (at least 85 percent of the blend consists of alcohol produced from coal, including peat),

  • Partially exempt ethanol and methanol fuel (at least 85 percent of the blend consists of alcohol produced from natural gas), or

  • Denatured alcohol.

Gasoline also includes gasoline blendstocks, discussed in Publication 510, and any product commonly used as an additive in gasoline (other than alcohol).

Aviation gasoline means all special grades of gasoline suitable for use in aviation reciprocating engines and covered by ASTM specification D 910 or military specification MIL-G-5572.

Nontaxable Uses

The following are the uses of gasoline for which a credit or refund may be allowable to an ultimate purchaser.

  • On a farm for farming purposes (credit only).

  • Off-highway business use.

  • Export.

  • In a boat engaged in commercial fishing.

  • In certain intercity and local buses.

  • In a school bus.

  • In a highway vehicle owned by the United States that is not used on a highway.

  • Exclusive use by a nonprofit educational organization (see sales by registered ultimate vendors).

  • Exclusive use by a state, political subdivision of a state, or the District of Columbia (see sales by registered ultimate vendors).

  • In an aircraft or vehicle owned by an aircraft museum.

The following are the uses of aviation gasoline for which a credit or refund may be allowable to an ultimate purchaser.

  • On a farm for farming purposes (credit only).

  • Export.

  • In foreign trade.

  • Certain helicopter and fixed-wing air ambulance uses.

  • In commercial aviation (other than foreign trade).

  • Exclusive use by a nonprofit educational organization (see sales by registered ultimate vendors).

  • Exclusive use by a state, political subdivision of a state, or the District of Columbia (see sales by registered ultimate vendors).

  • In a aircraft owned by an aircraft museum.

  • In military aircraft.

Sales by Registered Ultimate Vendors

This is a new category of registered ultimate vendor. This is an ultimate vendor that sells gasoline or aviation gasoline to any of the following.

  • A state or local government for its exclusive use (including essential government use by an Indian tribal government).

  • A nonprofit educational organization for its exclusive use.

The registered ultimate vendor may make the claim if the ultimate purchaser waives its right to the credit or refund by providing the registered ultimate vendor with a certificate. A sample certificate is included as Model Certificate D in the Appendix on page 18. The registered ultimate vendor must have the certificate at the time the credit or refund is claimed.

The ultimate vendor must be registered by the IRS. See Publication 510 for a discussion of the registration requirements.

Gasohol Blending

Gasohol repeal
The credits and refunds for the nontaxable use of gasohol and, generally, the use of gasoline taxed at the full rate to produce gasohol have been eliminated. The new credits for alcohol fuel mixtures and biodiesel mixtures are discussed in Chapter 4, Alcohol Fuel Mixture Credit, and Chapter 5, Biodiesel Mixture Credit.

Undyed Diesel Fuel and Undyed Kerosene (Other Than Aviation-Grade Kerosene)

Diesel fuel means:

  • Any liquid that without further processing or blending, is suitable for use as a fuel in a diesel-powered highway vehicle or train,

  • Transmix, and

  • Diesel fuel blendstocks (when identified by the IRS).

A liquid is suitable for this use if the liquid has practical and commercial fitness for use in the propulsion engine of a diesel-powered highway vehicle or diesel-powered train. A liquid may possess this practical and commercial fitness even though the specified use is not the predominant use of the liquid. However, a liquid does not possess this practical and commercial fitness solely by reason of its possible or rare use as a fuel in the propulsion engine of a diesel-powered highway vehicle or diesel-powered train. Diesel fuel does not include gasoline, kerosene, excluded liquid, No. 5 and No. 6 fuel oils covered by ASTM specification D 396, or F-76 (Fuel Naval Distillate) covered by military specification MIL-F-16884.

An excluded liquid is either of the following.

  1. A liquid that contains less than 4% normal paraffins.

  2. A liquid with all the following properties.

    1. Distillation range of 125 degrees Fahrenheit or less.

    2. Sulfur content of 10 ppm or less.

    3. Minimum color of +27 Saybolt.

Transmix means a by-product of refined products created by the mixing of different specification products during pipeline transportation.

Kerosene means any of the following liquids.

  • One of the two grades of kerosene (No. 1–K and No. 2–K) covered by ASTM specification D 3699.

  • Kerosene-type jet fuel covered by ASTM specification D 1655 or military specification MIL-DTL-5624T (Grade JP-5) or MIL-DTL-83133E (Grade JP-8). See Aviation-Grade Kerosene later.

Kerosene also includes any liquid that would be described above but for the presence of a dye of the type used to dye kerosene for a nontaxable use.

However, kerosene does not include an excluded liquid, discussed above.

Nontaxable Uses

The following are the uses of undyed diesel fuel and undyed kerosene for which a credit or refund may be allowable to an ultimate purchaser.

  • Off-highway business use.

  • Export.

  • In certain intercity and local buses.

  • In a qualified local bus.

  • In a school bus.

  • Used other than as a fuel.

  • In a train (undyed diesel fuel only).

  • In a highway vehicle owned by the United States that is not used on a highway.

  • Exclusive use by a nonprofit educational organization.

  • In a vehicle owned by an aircraft museum.

No credit or refund is allowable for any use of dyed diesel fuel and dyed kerosene. You buy these fuels excise tax free. See Publication 510 for more information about dyed fuels.

Sales by Registered Ultimate Vendors

The following are the sales for which a credit or refund may be allowable to the registered ultimate vendor only.

  • Undyed diesel fuel or undyed kerosene sold for use on a farm for farming purposes or for exclusive use by a state or local government,

  • Undyed kerosene sold from a blocked pump (defined below),

  • Undyed kerosene sold for blending, or

  • Undyed diesel fuel or undyed kerosene used in certain intercity and local buses, only if the ultimate purchaser waives its right to the credit or refund by providing the registered ultimate vendor with a waiver.

Registered ultimate vendor (farming and state use).   This is a person that sells undyed diesel fuel or undyed kerosene to any of the following.
  • The owner, tenant, or operator of a farm for use by that person on a farm for farming purposes.

  • A person other than the owner, tenant, or operator of a farm for use by that person on a farm in connection with cultivating, raising, or harvesting.

  • A state or local government for its exclusive use (including essential government use by an Indian tribal government).

The ultimate vendor must be registered by the IRS. See Publication 510 for a discussion of the registration requirements.

Registered ultimate vendor (blocked pump).   This is an ultimate vendor that sells undyed kerosene from a blocked pump.

  A credit or refund may be allowable to a registered ultimate vendor (blocked pump) if the vendor sold to a buyer undyed kerosene from a blocked pump for use other than as a fuel in a diesel-powered highway vehicle and the vendor had no reason to believe the kerosene would not be used in that manner.

Blocked pump.   A blocked pump is a fuel pump that meets all the following requirements.
  1. It is used to make retail sales of undyed kerosene for use by the buyer in any nontaxable use.

  2. It is at a fixed location.

  3. It is identified with a legible and conspicuous notice stating, “UNDYED UNTAXED KEROSENE, NONTAXABLE USE ONLY.

  4. It meets either of the following conditions.

    1. It cannot reasonably be used to dispense fuel directly into the fuel supply tank of a diesel-powered highway vehicle or train.

    2. It is locked by the vendor after each sale and unlocked by the vendor only in response to a buyer's request for undyed kerosene for use other than as a fuel in a diesel-powered highway vehicle or train.

The ultimate vendor (blocked pump) must be registered by the IRS. See Publication 510 for a discussion of the registration requirements.

Registered ultimate vendor (blending for cold weather).   This is a taxable fuel registrant (discussed in Publication 510), a registered ultimate vendor, or a registered ultimate vendor (blocked pump).

  A credit or refund may be allowable to a registered ultimate vendor (blending) if the vendor sold undyed kerosene in an area described in an IRS declaration of extreme cold for the production of a cold weather blend.

Cold weather blend.   This is a blend of kerosene and diesel fuel produced in an area described in an IRS declaration of extreme cold and sold for use or used for heating purposes.

Registered ultimate vendor (certain intercity and local buses).   This is a new category of registered ultimate vendor. This is an ultimate vendor that sells undyed diesel fuel or undyed kerosene to the ultimate purchaser for use in certain intercity and local buses.

  The registered ultimate vendor may make the claim if the ultimate purchaser waives its right to the credit or refund by providing the registered ultimate vendor with a waiver. A sample waiver is included as Model Waiver E in the Appendix on page 19. The registered ultimate vendor must have the waiver at the time the credit or payment is claimed.

Aviation-Grade Kerosene

Aviation-grade kerosene replaces aviation fuel. Aviation-grade kerosene means kerosene-type jet fuel covered by ASTM specification D 1655 or military specification MIL-DTL-5624T (Grade JP-5) or MIL-DTL-83133E (Grade JP-8).

Nontaxable Uses

The following are the uses of aviation-grade kerosene taxed at the full rate for which a credit or refund of the full rate may be allowable to an ultimate purchaser.

  • Export.

  • In foreign trade.

  • Certain helicopter and fixed-wing air ambulance uses.

  • Used other than as a fuel in the propulsion engine of an aircraft.

  • Exclusive use by a nonprofit educational organization.

  • In a aircraft owned by an aircraft museum.

  • In military aircraft.

A credit or refund at a reduced rate may be allowable to an ultimate purchaser of aviation-grade kerosene taxed at the full rate and used in commercial aviation (other than foreign trade).

A credit or refund may be allowable to an ultimate purchaser of aviation-grade kerosene taxed at the commercial aviation rate and used in foreign trade.

Sales by Registered Ultimate Vendors

The registered ultimate vendor of aviation-grade kerosene may make a claim for a nontaxable use only if the ultimate purchaser waives its right to make a claim by providing the registered ultimate vendor with a waiver. A sample waiver is included as Model Waiver C in the Appendix on page 17. The ultimate vendor must have the waiver at the time the credit or payment is claimed.

A nontaxable use for this purpose means any use that is exempt from the tax imposed under section 4041(c) (other than by reason of a prior imposition of tax) and any use in commercial aviation within the meaning of section 4083(b).

Registered ultimate vendor (farming and state use).   This is an ultimate vendor that sells aviation-grade kerosene to any of the following.
  • The owner, tenant, or operator of a farm for use by that person on a farm for farming purposes.

  • A person other than the owner, tenant, or operator of a farm for use by that person on a farm in connection with cultivating, raising, or harvesting.

  • A state or local government for its exclusive use (including essential government use by an Indian tribal government).

The claim for a credit or refund may be allowable to the registered ultimate vendor only. The ultimate vendor must be registered by the IRS. See Publication 510 for a discussion of the registration requirements.

Liquefied Petroleum Gas

Liquefied petroleum gas (LPG) includes propane, butane, and pentane, or mixtures of those gases.

Nontaxable Uses

The following are the uses of taxed LPG for which a credit or refund may be allowable to an ultimate purchaser.

  • On a farm for farming purposes.

  • Off-highway business use.

  • In a boat engaged in commercial fishing.

  • In certain intercity and local buses.

  • In a qualified local bus.

  • In a school bus.

  • Exclusive use by a nonprofit educational organization.

  • Exclusive use by a state, political subdivision of a state, or the District of Columbia.

  • In an aircraft or vehicle owned by an aircraft museum.

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