State means any non-Federal permitting authority, including any local agency, interstate association, or statewide program. The term State also includes the District of Columbia, the Commonwealth of Puerto Rico, the Virgin Islands, Guam, American Samoa, and the Commonwealth of the Northern Mariana Islands. Where such meaning is clear from the context, State shall have its conventional meaning.
40 CFR § 71.22
All terms used in this subpart not defined in this section are given the same meaning as in the Act or in subpart D of part 63 of this chapter.