Title 252 - Department of Environmental Quality
- Chapter 1 - Procedures of the Environmental Quality Board [Revoked] (§§ 252:1-1-1 — 252:1-1-10)
- Chapter 2 - Procedures of the Department of Environmental Quality [Revoked] (§§ 252:2-1-1 — 252:2-21-4)
- Chapter 3 - Procedures of the Environmental Quality Councils [Revoked] (§§ 252:3-1-1 — 252:3-3-3)
- Chapter 4 - Rules of Practice and Procedure (§§ 252:4-1-1 — 4)
- Chapter 20 - Emergency Planning and Community Right-to-Know (§§ 252:20-1-1 — 252:20-1-7)
- Chapter 100 - Water Quality Standards Implementation (§§ 252:100-1-1 — 100)
- Chapter 110 - Lead-Based Paint Management (§§ 252:110-1-1 — 252:110-15-6)
- Chapter 200 - Hazardous Waste Management [REVOKED] (§§ 252:200-1-1 — 252:200-19-34)
- Chapter 205 - Hazardous Waste Management (§§ 252:205-1-1 — 205)
- Chapter 210 - Highway Spill Remediation (§§ 252:210-1-1 — 252:210-1-8)
- Chapter 220 - Brownfields (§§ 252:220-1-1 — 252:220-11-10)
- Chapter 221 - Brownfields (§§ 252:221-1-1 — 252:221-7-13)
- Chapter 300 - Laboratory Accreditation [Revoked] (§§ 252:300-1-1 — 252:300-21-4)
- Chapter 301 - Laboratory Accreditation (§§ 252:301-1-1 — 252:301-9-57)
- Chapter 302 - Field Laboratory Accreditation (§§ 252:302-1-1 — 252:302-9-34)
- Chapter 303 - TNI Laboratory Accreditation [REVOKED] (§§ 252:303-1-1 — 252:303-9-4)
- Chapter 305 - Laboratory Services (§§ 252:305-1-1 — 252:305-1-11)
- Chapter 307 - TNI Laboratory Accreditation (§§ 252:307-1-1 — 252:307-11-4)
- Chapter 400 - Radiation Management [Revoked] (§§ 252:400-1-1 — 252:400-17-56)
- Chapter 410 - Radiation Management (§§ 252:410-1-1 — 252:410-23-5)
- Chapter 500 - Solid Waste Management [Revoked] (§§ 252:500-1-1 — 252:500-21-55)
- Chapter 510 - Municipal Solid Waste Landfills [Revoked] (§§ 252:510-1-1 — 252:510-21-12)
- Chapter 515 - Management of Solid Waste (§§ 252:515-1-1 — 515)
- Chapter 517 - Disposal of Coal Combustion Residuals from Electric Utilities (§§ 252:517-1-1 — 252:517-19-3)
- Chapter 520 - Solid Waste Management [Revoked] (§§ 252:520-1-1 — 252:520-27-10)
- Chapter 600 - Dairy Waste Management [Revoked] (§§ 252:600-1-1 — 252:600-9-1)
- Chapter 605 - Discharge Standards [Revoked] (§§ 252:605-1-1 — 252:605-11-1)
- Chapter 606 - Oklahoma Pollutant Discharge Elimination System (OPDES) Standards (§§ 252:606-1-1 — 252:606-13-1)
- Chapter 610 - General Water Quality [Revoked] (§§ 252:610-1-1 — 252:610-11-4)
- Chapter 611 - General Water Quality (§§ 252:611-1-1 — 252:611-5-3)
- Chapter 615 - Industrial Wastewater Systems [Revoked] (§§ 252:615-1-1 — 252:615-11-1)
- Chapter 616 - Industrial Wastewater Systems (§§ 252:616-1-1 — 252:616-13-5)
- Chapter 619 - Operation and Maintenance of Non-Industrial Total Retention Lagoon Systems (§§ 252:619-1-1 — 252:619-5-2)
- Chapter 620 - Non-Industrial Impoundments [Revoked] (§§ 252:620-1-1 — 252:620-13-1)
- Chapter 621 - Non-Industrial Discharging and Public Water Supply Lagoons (§§ 252:621-1-1 — 252:621-9-4)
- Chapter 622 - Pretreatment for Central Treatment Trusts [Revoked] (§§ 252:622-1-1 — 252:622-33-1)
- Chapter 623 - Pretreatment for Central Treatment Trusts (§§ 252:623-1-1 — 252:623-23-1)
- Chapter 624 - Minor Public Water Supply Systems (§§ 252:624-1-1 — 252:624-11-2)
- Chapter 625 - Public Water Supply Construction Standards [Revoked] (§§ 252:625-1-1 — 252:625-19-5)
- Chapter 626 - Public Water Supply Construction Standards (§§ 252:626-1-1 — 252:626-21-3)
- Chapter 627 - Operation and Maintenance of Water Reuse Systems (§§ 252:627-1-1 — 252:627-5-1)
- Chapter 628 - Indirect Potable Reuse for Surface Water Augmentation (§§ 252:628-1-1 — 252:628-11-7)
- Chapter 630 - Public Water Supply Operation [Revoked] (§§ 252:630-1-1 — 252:630-1-17)
- Chapter 631 - Public Water Supply Operation (§§ 252:631-1-1 — 252:631-5-5)
- Chapter 633 - Drinking Water State Revolving Fund (§§ 252:633-1-1 — 633)
- Chapter 635 - Reservoir Sanitation [Revoked] (§§ 252:635-1-1 — 252:635-3-8)
- Chapter 640 - Individual and Small Public Sewage Disposal [Revoked] (§§ 252:640-1-1 — 252:640-1-17)
- Chapter 641 - Individual and Small Public On-Site Sewage Treatment Systems (§§ 252:641-1-1 — 641)
- Chapter 645 - Septage Pumpers and Transporters (§§ 252:645-1-1 — 252:645-9-2)
- Chapter 647 - Sludge and Land Application of Wastewater [Revoked] (§§ 252:647-1-1 — 252:647-9-101)
- Chapter 648 - Land Application of Biosolids [Revoked] (§§ 252:648-1-1 — 252:648-7-1)
- Chapter 650 - Underground Injection Control [REVOKED] (§§ 252:650-1-1 — 252:650-7-2)
- Chapter 652 - Underground Injection Control (§§ 252:652-1-1 — 252:652-9-3)
- Chapter 653 - Aquifer Storage and Recovery (§§ 252:653-1-1 — 252:653-11-22)
- Chapter 655 - Water Pollution Control Construction Standards [Revoked] (§§ 252:655-1-1 — 252:655-29-3)
- Chapter 656 - Water Pollution Control Facility Construction Standards (§§ 252:656-1-1 — 252:656-27-5)
- Chapter 690 - Water Quality Standards Implementation (§§ 252:690-1-1 — 690)
- Chapter 700 - Waterworks and Wastewater Works Operator Certification [Revoked] (§§ 252:700-1-1 — 252:700-13-3)
- Chapter 710 - Waterworks and Wastewater Works Operator Certification (§§ 252:710-1-1 — 710)
- Chapter 730 - Oklahoma's Water Quality Standards (§§ 252:730-1-1 — 730)
- Chapter 740 - Implementation of Oklahoma's Water Quality Standards (§§ 252:740-1-1 — 740)