10 CFR § 501.142 - Modification or rescission.

---
identifier: "/us/cfr/t10/s501.142"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "10 CFR § 501.142 - Modification or rescission."
title_number: 10
title_name: "Energy"
section_number: "501.142"
section_name: "Modification or rescission."
chapter_name: "DEPARTMENT OF ENERGY"
subchapter_number: "E"
subchapter_name: "ALTERNATE FUELS"
part_number: "501"
part_name: "ADMINISTRATIVE PROCEDURES AND SANCTIONS"
positive_law: false
currency: "2026-03-24"
last_updated: "2026-03-24"
format_version: "1.1.0"
generator: "[email protected]"
authority: "42 U.S.C. 7101  42 U.S.C. 8301  42 U.S.C. 8701  E.O. 12009, 42 FR 46267; 28 U.S.C. 2461 note."
regulatory_source: "46 FR 59889, Dec. 7, 1981, unless otherwise noted."
cfr_part: "501"
---


# 501.142 Modification or rescission.

(a) A ruling may be modified or rescinded by—

(1) Publication of the modification or rescission by DOE in the *Federal Register* and in 10 CFR part 518; or

(2) Adoption of a rule that supersedes or modifies a prior ruling.

(b) A person shall not be subject to the sanctions or penalties stated in these regulations for actions taken in reliance upon a ruling, notwithstanding that the ruling is subsequently declared to be invalid or no longer applicable. A person affected by a ruling may not rely upon it for more than 30 days after it has been rendered invalid pursuant to issuance of a superseding rule by OFE, or after it has been rescinded or modified by DOE.