TITLE 35: ENVIRONMENTAL PROTECTION
SUBTITLE A: GENERAL PROVISIONS
CHAPTER I: POLLUTION CONTROL BOARD
PART 104 REGULATORY RELIEF MECHANISMS


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SUBPART A: GENERAL PROVISIONS

SUBPART B: VARIANCES

SUBPART C: PROVISIONAL VARIANCES

SUBPART D: ADJUSTED STANDARDS

SUBPART E: TIME-LIMITED WATER QUALITY STANDARDS (TLWQS)


AUTHORITY: Subparts B and C: Implementing Sections 5, 35, 36, 37 and 38 of the Environmental Protection Act (Act) [415 ILCS 5/5, 35, 36, 37, and 38] and authorized by Sections 26 and 27 of the Act [415 ILCS 5/26 and 27]. Subpart D: Implementing Sections 5, 14.2(c), 22.4, 27, 28, 28.1, 28.5 and 39.5 of the Act [415 ILCS 5/5, 14.2(c), 22.4, 27, 28, 28.1, 28.5 and 39.5] and authorized by Sections 26 and 27 of the Act [415 ILCS 5/26 and 27]. Subpart E: Implementing and authorized by Sections 4, 5, and 38.5 of the Act [415 ILCS 5/5 and 38.5].

SOURCE: Subpart B: Originally adopted as Chapter I: Procedural Rules, Part IV: Variances, in R70-4, at 1 PCB 43, October 8, 1970; amended in R77-16, 29 PCB 503, at 2 Ill. Reg. 16, p. 3, effective May 1974; amended in R79-9, 35 PCB 433, at 3 Ill. Reg. 51, p. 128, effective December 7, 1979; amended in R80-12, 40 PCB 451, at 5 Ill. Reg. 2763, effective March 2, 1981; codified at 6 Ill. Reg. 8357; amended in R84-10, 62 PCB 87, at 9 Ill. Reg. 1409, effective January 16, 1985; old Part repealed, new Part adopted in R00-20 at 25 Ill. Reg. 613, effective January 1, 2001; amended in R04-24 at 29 Ill. Reg. 8803, effective June 8, 2005; amended in R14-21 at 39 Ill. Reg. 2357, effective January 27, 2015; amended in R15-20 at 39 Ill. Reg. 12905, effective September 8, 2015; amended in R16-17 at 40 Ill. Reg. 7973, effective May 20, 2016; amended in R17-18 at 41 Ill. Reg. 10049, effective July 5, 2017; amended in R18-18 at 42 Ill. Reg. 7922, effective April 27, 2018.