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Treasury Regulations · 26 CFR

§ 48.4041-21. Compressed natural gas (CNG).

In effect eCFR current as of October 15, 2026

Regulation text, no changes From the eCFR, current as of October 15, 2026. The eCFR is an authoritative but unofficial editorial compilation of the Code of Federal Regulations; the official text is the annual CFR on govinfo. Compare it with this section on ecfr.gov (external site) or the official annual CFR on govinfo (external site).

Regulation under 26 U.S.C. § 4041

Cite as 26 CFR § 48.4041-21

At a glance

Read from the text and its source citation. Not part of the regulation.

Status
In the current eCFR
Issued
August 7, 1995 by T.D. 8609
Last amended
April 2, 2003 by T.D. 9051
Issued under
26 U.S.C. § 4041
Length
943 words · about 4 min to read
Cross-references
cites 2 Code sections and 0 regulations; cited by 0
(a) Delivery of CNG into the fuel supply tank of a motor vehicle or motorboat—
(1) Imposition of tax. Tax is imposed on the delivery of compressed natural gas (CNG) into the fuel supply tank of the propulsion engine of a motor vehicle or motorboat unless tax was previously imposed on the CNG under paragraph (b) of this section.
(2) Liability for tax. If the delivery of the CNG is in connection with a sale, the seller of the CNG is liable for the tax imposed under paragraph (a)(1) of this section. If the delivery of the CNG is not in connection with a sale, the operator of the motor vehicle or motorboat, as the case may be, is liable for the tax imposed under paragraph (a)(1) of this section.
(b) Bulk sales of CNG—
(1) In general. Tax is imposed on the sale of CNG that is not in connection with the delivery of the CNG into the fuel supply tank of the propulsion engine of a motor vehicle or motorboat if, by the time of the sale—
(i) The buyer has given the seller a written statement stating that the entire quantity of the CNG covered by the statement is for use by the buyer for a taxable use as a fuel in a motor vehicle or motorboat; and
(ii) The seller has given the buyer a written acknowledgement of receipt of the statement described in paragraph (b)(1)(i) of this section.
(2) Liability for tax. The seller of the CNG is liable for the tax imposed under this paragraph (b).
(c) Exemptions—
(1) In general. The taxes imposed under this section do not apply to a delivery or sale of CNG for a use described in section 4041(a)(3)(B), (b)(1), (f), (g), or (h). However, if the person otherwise liable for tax under this section is the seller of the CNG, the exemption under this section applies only if, by the time of sale, the seller receives an unexpired certificate (as described in this paragraph (c)) from the buyer and has no reason to believe any information in the certificate is false.
(2) Certificate; in general. The certificate to be provided by a buyer of CNG is to consist of a statement that is signed under penalties of perjury by a person with authority to bind the buyer, should be in substantially the same form as the model certificate provided in paragraph (c)(4) of this section, and should contain all information necessary to complete the model certificate. A new certificate must be given if any information in the current certificate changes. The certificate may be included as part of any business records normally used to document a sale. The certificate expires on the earliest of the following dates:
(i) The date one year after the effective date of the certificate (which may be no earlier than the date it is signed).
(ii) The date a new certificate is provided to the seller.
(iii) The date the seller is notified by the Internal Revenue Service or the buyer that the buyer's right to provide a certificate has been withdrawn.
(3) Withdrawal of the right to provide a certificate. The Internal Revenue Service may withdraw the right of a buyer of CNG to provide a certificate under this paragraph (c) if the buyer uses CNG to which a certificate applies in a taxable use. The Internal Revenue Service may notify any seller to whom the buyer has provided a certificate that the buyer's right to provide a certificate has been withdrawn.
(4) Model certificate.
Certificate of Person Buying Compressed Natural Gas (CNG) for a Nontaxable Use

(To support tax-free sales of CNG under section 4041 of the Internal Revenue Code.)

Name, address, and employer identification number of seller

____________________ (“Buyer”) certifies the following under penalties of perjury:

The CNG to which this certificate relates will be used in a nontaxable use.

This certificate applies to the following (complete as applicable):

If this is a single purchase certificate, check here ______ and enter:

1. Invoice or delivery ticket number ________________

2. ________ (number of MCFs) ________

If this is a certificate covering all purchases under a specified account or order number, check here ______ and enter:

1. Effective date ________________

2. Expiration date ________________ (period not to exceed 1 year after the effective date)

3. Buyer account or order number ________________

Buyer will not claim a credit or refund under section 6427 of the Internal Revenue Code for any CNG to which this certificate relates.

Buyer will provide a new certificate to the seller if any information in this certificate changes.

Buyer understands that if Buyer violates the terms of this certificate, the Internal Revenue Service may withdraw Buyer's right to provide a certificate.

Buyer has not been notified by the Internal Revenue Service that its right to provide a certificate has been withdrawn. In addition, the Internal Revenue Service has not notified Buyer that the right to provide a certificate has been withdrawn from a purchaser to which Buyer sells CNG tax free.

Buyer understands that the fraudulent use of this certificate may subject Buyer and all parties making any fraudulent use of this certificate to a fine or imprisonment, or both, together with the costs of prosecution.

Printed or typed name of person signing

Title of person signing

Employer identification number

Address of Buyer

Signature and date signed

(d) Rate of tax. The rate of the tax imposed under this section is the rate prescribed by section 4041(a)(3).
(e) Effective date. This section is effective October 1, 1995.

[T.D. 8609, 60 FR 40082, Aug. 7, 1995; 60 FR 50245, Sept. 28, 1995; T.D. 8659, 61 FR 10453, Mar. 14, 1996; T.D. 8879, 65 FR 17155, Mar. 31, 2000; T.D. 9051, 69 FR 15941, Apr. 2, 2003]

Other regulations under § 4041

Cross-references

Computed from the citations in the text of 26 CFR.

Code sections it cites

Amendment history

From the source citation at the end of the section, newest first. T.D. is a Treasury decision; FR is the Federal Register.

  1. Amended by T.D. 9051 (69 FR 15941)
  2. Amended by T.D. 8879 (65 FR 17155)
  3. Amended by T.D. 8659 (61 FR 10453)
  4. Amended (60 FR 50245)
  5. Issued by T.D. 8609 (60 FR 40082)

Where it sits in 26 CFR

  1. Subchapter D Miscellaneous excise taxes
  2. Part 48 Manufacturers and retailers excise taxes
  3. Subpart F Special Fuels

Nearby sections