---identifier: "/us/cfr/t10/s500.1"source: "ecfr"legal_status: "authoritative_unofficial"title: "10 CFR § 500.1 - Purpose and scope."title_number: 10title_name: "Energy"section_number: "500.1"section_name: "Purpose and scope."chapter_name: "DEPARTMENT OF ENERGY"subchapter_number: "E"subchapter_name: "ALTERNATE FUELS"part_number: "500"part_name: "DEFINITIONS"positive_law: falsecurrency: "2026-03-24"last_updated: "2026-03-24"format_version: "1.1.0"generator: "[email protected]"authority: "Department of Energy Organization Act, Pub. L. 95-91, 91 Stat. 565 (42 U.S.C. § 7101 ); Powerplant and Industrial Fuel Use Act of 1978, Pub. L. 95-620, 92 Stat. 3289 (42 U.S.C. 8301 ); Energy Security Act, Pub. L.96-294, 94 Stat. 611 (42 U.S.C. 8701 ); E.O. 1209, 42 FR 46267, September 15, 1977."regulatory_source: "46 FR 59884, Dec. 7, 1981, unless otherwise noted."cfr_part: "500"---
Identifier
/us/cfr/t10/s500.1
Currency
2026-03-24
Positive Law
No
Updated
2026-03-24
Chapter
Department of Energy
Authority
Department of Energy Organization Act, Pub. L. 95-91, 91 Stat. 565 (42 U.S.C. § 7101 ); Powerplant and Industrial Fuel Use Act of 1978, Pub. L. 95-620, 92 Stat. 3289 (42 U.S.C. 8301 ); Energy Security... Department of Energy Organization Act, Pub. L. 95-91, 91 Stat. 565 (42 U.S.C. § 7101 ); Powerplant and Industrial Fuel Use Act of 1978, Pub. L. 95-620, 92 Stat. 3289 (42 U.S.C. 8301 ); Energy Security Act, Pub. L.96-294, 94 Stat. 611 (42 U.S.C. 8701 ); E.O. 1209, 42 FR 46267, September 15, 1977.
# 500.1 Purpose and scope.Unless otherwise expressly provided or the context clearly indicates otherwise, this section defines the terms used in these regulations. The use of the male gender is to include female; the use of singular to include plural.