area source
Defined in 1 dictionary — U.S. Code
United States Code
42 U.S.C. § 7412 — for purposes of this section (2 versions over time)
The term “area source” means any stationary source of hazardous air pollutants that is not a major source. For purposes of this section, the term “area source” shall not include motor vehicles or nonroad vehicles subject to regulation under subchapter II.