US lawFederal (United States)RegulationsTitle 40 CFR — Protection of EnvironmentChapter I — ENVIRONMENTAL PROTECTION AGENCYPart 300 — NATIONAL OIL AND HAZARDOUS SUBSTANCES POLLUTION CONTINGENCY PLANSubpart A — Introduction300.640 C.F.R. § 300.6Use of number and gender.Last amended: 2016Year: 2026Length: 31 wordsOfficial source Cite as 40 C.F.R. § 300.6 (2026)As used in this regulation, words in the singular also include the plural and words in the masculine gender also include the feminine and vice versa, as the case may require.Previous40 C.F.R. § 300.5Next40 C.F.R. § 300.7