For the purposes of this program, the definitions in part 51, Appendix S, paragraph II.A of this chapter apply, unless otherwise stated. The following definitions also apply to this program:
Allowable emissions means "allowable emissions" as defined in part 51, Appendix S, paragraph II.A.11 of this chapter, except that the allowable emissions for any emissions unit are calculated considering any emission limitations that are enforceable as a practical matter on the emissions unit's potential to emit.
Enforceable as a practical matter means that an emission limitation or other standard is both legally and practicably enforceable as follows:
Environmental Appeals Board means the Board within the EPA described in § 1.25(e) of this chapter.
Indian country, as defined in 18 U.S.C. 1151 , means the following as applied to this program:
Indian governing body means the governing body of any Tribe, band or group of Indians subject to the jurisdiction of the United States and recognized by the United States as possessing power of self-government.
Reviewing authority means the Administrator or an Indian Tribe in cases where a Tribal agency is assisting EPA with administration of the program through a delegation under § 49.173 .
Synthetic minor HAP source means a source that otherwise has the potential to emit HAPs in amounts that are at or above those for major sources of HAP in § 63.2 of this chapter, but that has taken a restriction such that its potential to emit is less than such amounts for major sources. Such restrictions must be enforceable as a practical matter.
Synthetic minor source means a source that otherwise has the potential to emit regulated NSR pollutants in amounts that are at or above those for major sources in Appendix S, but that has taken a restriction such that its potential to emit is less than such amounts for major sources. Such restrictions must be enforceable as a practical matter.
40 C.F.R. §49.167