New
DPDP Act compliance check for companies
, core duties apply from 13 May 2027
Know more
Justis AI
Product
Solutions
Use cases
Resources
Pricing
Sign In
Book Now
US law
Illinois
Regulations
Title 35 — ENVIRONMENTAL PROTECTION
CHAPTER I: POLLUTION CONTROL BOARD
Part 303 — WATER USE DESIGNATIONS AND SITE-SPECIFIC WATER QUALITY STANDARDS
Illinois · Regulations
Part 303 — WATER USE DESIGNATIONS AND SITE-SPECIFIC WATER QUALITY STANDARDS
47 sections
4 groups
Subpart A
3 sections
Subpart B
13 sections
Subpart C
27 sections
Subpart D
2 sections
2 sections filed directly here
35 Ill. Adm. Code 303.APPENDIX A
A References to Previous Rules (Repealed)
35 Ill. Adm. Code 303.APPENDIX B
B Sources of Codified Section (Repealed)
Part 303 — WATER USE DESIGNATIONS AND SITE-SPECIFIC WATER QUALITY STANDARDS | Illinois Regulations | Justis AI