“Area source” means a 2-dimensional, horizontal source from which air emissions are being released at a relatively uniform rate from every part of its surface.

Source. #6057-A, eff 6-30-95; renumbered by #8256 (from Env-A 101.37), (see Revision Note #1 at chapter heading); renumbered by #8304 (see Revision Note #2 at chapter heading); ss by #13105, eff 9-25-20 (formerly Env-A 101.28) (see Revision Note #4 at chapter heading for Env-A 100)