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  1. LII
  2. State Regulations
  3. Oklahoma Administrative Code
  4. Okla. Admin. Code tit. 252 - DEPARTMENT OF ENVIRONMENTAL QUALITY
  5. Chapter 740 - IMPLEMENTATION OF OKLAHOMA'S WATER QUALITY STANDARDS
  6. Subchapter 13 - Implementation of Antidegradation Policy

Subchapter 13 - Implementation of Antidegradation Policy

  • State Regulations
  • Compare
  1. § 252:740-13-1 - Applicability and scope
  2. § 252:740-13-2 - Definitions
  3. § 252:740-13-3 - Tier 1 protection; attainment or maintenance of an existing or designated beneficial use
  4. § 252:740-13-4 - Tier 2 protection; maintenance and protection of sensitive water supply-reuse and other tier 2 waterbodies
  5. § 252:740-13-5 - Tier 2.5 protection; maintenance and protection of high quality waters, sensitive water supplies, and other tier 2.5 waterbodies
  6. § 252:740-13-6 - Tier 3 protection; prohibition against degradation of water quality in outstanding resource waters
  7. § 252:740-13-7 - Protection for Appendix B areas
  8. § 252:740-13-8 - Antidegradation review in surface waters

State regulations are updated quarterly; we currently have two versions available. Below is a comparison between our most recent version and the prior quarterly release. More comparison features will be added as we have more versions to compare.


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