40 CFR § 307.12 - Use of number and gender.

---
identifier: "/us/cfr/t40/s307.12"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "40 CFR § 307.12 - Use of number and gender."
title_number: 40
title_name: "Protection of Environment"
section_number: "307.12"
section_name: "Use of number and gender."
chapter_name: "ENVIRONMENTAL PROTECTION AGENCY"
subchapter_number: "J"
subchapter_name: "SUPERFUND, EMERGENCY PLANNING, AND COMMUNITY RIGHT-TO-KNOW PROGRAMS"
part_number: "307"
part_name: "COMPREHENSIVE ENVIRONMENTAL RESPONSE, COMPENSATION, AND LIABILITY ACT (CERCLA) CLAIMS PROCEDURES"
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. 9601  sections 4 and 9, E.O. 12580, 52 FR 2923, 3 CFR, 1987 Comp. p. 193."
regulatory_source: "58 FR 5475, Jan. 21, 1993, unless otherwise noted."
cfr_part: "307"
---


# 307.12 Use of number and gender.

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.