Laws & Regulations
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EPA-Approved Louisiana Nonregulatory Provisions and Quasi-Regulatory Measures in the Louisiana SIP
EPA Approved Nonregulatory Provisions and Quasi-Regulatory Measures in the Louisiana SIP
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Louisiana LAC 33:III Ch. 15 Section 1513 - Recordkeeping and Reporting, SIP effective September 13, 1993 (LAc59)
LA SIP: 33 LAC III Ch. 15 Section 1513
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Previous New Mexico State-Wide SIP Approved Regulations
EPA Approved Statutes and Regulations in the New Mexico SIP
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Arkansas Rule 19 Chapter 17: 111(d) Requirements for Landfills -- Not in Arkansas SIP but is part of the EPA approved Arkansas 111(d) Plan for Designated Facilities, EPA effective January 30, 2023
AR Reg 19 Chap 1 Title Intent Purpose SIP effective Nov 6 2018 ARd31 yyt
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Arkansas Rule 19 Chapter 8: 111(d) Designated Facilities – Not in Arkansas SIP but is part of the EPA approved 40 CFR Part 62 Arkansas 111(d) Plan for Designated Facilities EPA effective April 1, 2024.
AR Reg 19 Chap 1 Title Intent Purpose SIP effective Nov 6 2018 ARd31 yyt
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HMA General Air Quality Permit Coverage for Poe Asphalt Inc. (Fighting Creek Quarry) on the Coeur d'Alene Reservation
EPA's approval of coverage under the HMA general permit for Poe Asphalt Inc. - Fighting Creek (HMA Plant) - Fighting Creek Quarry, Coeur d' Alene, ID on the Coeur d' Alene Reservation.
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NPDES General Permit for Offshore Seafood Processors in Federal Waters Off the Washington and Oregon Coast
NPDES general permit and supporting documents for offshore seafood processors in federal waters off the coast of Washington and Oregon.
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NPDES General Permit for Oil and Gas Exploration Facilities in Federal Waters of Cook Inlet
NPDES general permit and supporting documents for oil and gas exploration facilities in federal waters of Cook Inlet.
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Louisiana Register Citations in the Louisiana SIP-Approved rules in this web site
Louisiana SIP: Register Citations
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Arkansas SIP-Approved Air Quality Control Rules now in the Arkansas Code of Arkansas Rules (CAR) SIP effective February 25, 2026
Current EPA-Approved Regulations in the Arkansas SIP
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Idaho NPDES Permits
NPDES water permits issued in Idaho.
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SQCS General Air Quality Permit Coverage Central Washington Concrete (Toppenish Quarry) on the Yakama Reservation
EPA's approval for coverage under the SQCS general air quality permit for Central Washington Concrete (Toppenish Quarry) on the Yakama Reservation near Toppenish, Washington.
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SQCS General Air Quality Permit Coverage for Central Washington Concrete (Wapato Quarry) on the Yakama Reservation
EPA's approval of coverage under the SQCS general permit for CPM Development Corporation dba Central Washington Concrete (SQCS Plant) - 2131 Lateral 1 Road (Wapato Quarry), Wapato, Washington on the Yakama Nation Lands.
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Historical Cost Equations Documentation for CoST
CoST-related historical cost equations documentation for models and tools maintained by OAQPS
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Estimated Avoided Costs and Forgone Emission Reductions Associated with the Potential Withdrawal of the Control Techniques Guidelines for the Oil and Natural Gas Industry
Estimated Avoided Costs and Forgone Emission Reductions Associated with the Potential Withdrawal of the Control Techniques Guidelines for the Oil and Natural Gas Industry
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Learn the Basics of Hazardous Waste
Overview that includes the definition of hazardous waste, EPA’s Cradle-to-Grave Hazardous Waste Management Program, and hazardous waste generation, identification, transportation, recycling, treatment, storage, disposal and regulations.
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Source Water Protection
Provide information on: what source water protection is; priority threats and sources of contamination; and available resources and tools (programmatic, financial, technical, potential partners.)
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CAA Permitting in EPA's South Central Region
Air permitting in EPA's South Central region, Region 6; serving Arkansas, Louisiana, New Mexico, Oklahoma, Texas and 66 Tribes
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Guidance for Facilities on Risk Management Programs (RMP)
Includes supplemental guidance specific to ammonia refrigeration, wastewater treatment, propane storage, warehouses, chemical distributors, offsite consequence analysis, retail agriculture, applicability of program levels, prevention, emergency response.
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General RMP Guidance - Chapter 11: Communication with the Public
CAA requires that Risk Management Plans and offsite consequence analysis be made available to the public, so you should be prepared to discuss them with the press, Local Emergency Planning Committees, State Emergency Response Commissions, and others.