Ill. Admin. Code tit. 35, § 215.439
The owner or operator of a synthetic organic chemical or polymer manufacturing plant subject to Sections 215.430 through 215.439 shall comply with the standards and limitations of those Sections no later than December 31, 1987.
(Source: Former Section 215.439 renumbered from Section 215.438 and amended at 13 Ill. Reg. 10893, effective June 27, 1989)