The requirements in Env-A 1200, as effective on June 1, 2011, shall not relieve any source that was subject to any previous version of Env-A 1204 from its obligation to have been in compliance with applicable rules as then in effect.

Source. (See Revision Note at chapter heading for Env-A 1200) #9933, eff 6-1-11; ss by #12899, eff 10-17-19