US lawFederal (United States)RegulationsTitle 40 CFR — Protection of EnvironmentChapter I — ENVIRONMENTAL PROTECTION AGENCYPart 307 — COMPREHENSIVE ENVIRONMENTAL RESPONSE, COMPENSATION, AND LIABILITY ACT (CERCLA) CLAIMS PROCEDURESSubpart A — General307.1240 C.F.R. § 307.12Use of number and gender.Last amended: 2016Year: 2026Length: 31 wordsOfficial source Cite as 40 C.F.R. § 307.12 (2026)As used in this part, words in the singular also include the plural and vice versa, and words in the masculine gender also include the feminine, as the case may require.Previous40 C.F.R. § 307.11Next40 C.F.R. § 307.13