State
State means one of the 48 contiguous States and the District of Columbia specified in 51.121 of this chapter, or any non-federal authority in or including such States or the District of Columbia (including local agencies, and Statewide agencies) or any eligible Indian tribe in an area of such State or the District of Columbia, that adopts a NOX Budget Trading Program pursuant to 51.121 of this chapter. To the extent a State incorporates by reference the provisions of this part, the term State shall mean the incorporating State. The term State shall have its conventional meaning where such meaning is clear from the context.