US lawFederal (United States)RegulationsTitle 40 CFR — Protection of EnvironmentChapter I — ENVIRONMENTAL PROTECTION AGENCYPart 98 — MANDATORY GREENHOUSE GAS REPORTINGSubpart XX — Calcium Carbide Production98.50840 C.F.R. § 98.508Definitions.Last amended: 2025Year: 2026Length: 22 wordsOfficial source Cite as 40 C.F.R. § 98.508 (2026)All terms used of this subpart have the same meaning given in the Clean Air Act and subpart A of this part.Previous40 C.F.R. § 98.507