For any existing source that causes visibility impairment in any mandatory Class I Federal area, the Technical Secretary may specify on the construction and/or operating permit(s) as permit conditions an emission limitation that is equivalent to “BART”. Existing sources subject to the provisions of rule .04 are not subject to the provisions of this Rule ( 1200-03-23-.05).

Authority: T.C.A. §§ 4-5-201, et seq. and 68-25-105. Administrative History: Original rule filed September 22, 1988; effective November 6, 1988. Amendment filed May 10, 1994; effective July 24, 1994.