40 C.F.R. § 209.2 Use of number and gender.
Title 40 - Protection of Environment
In these rules of practice, words in the singular number apply to the plural and words in the masculine gender apply to the feminine and vice versa.
Title 40: Protection of Environment
PART 209—RULES OF PRACTICE GOVERNING PROCEEDINGS UNDER THE NOISE CONTROL ACT OF 1972
Subpart A—Rules of Practice Governing Hearings for Orders Issued Under Section 11(d) of the Noise Control Act
§ 209.2 Use of number and gender.