Laws & Regulations

Texas SIP: 30 TAC 117.540. Phased Reasonably Available Control Technology (RACT); SIP effective 2000.10.31

Arkansas Rule 19, Chapter 7: Sampling, Monitoring, and Reporting Requirements, SIP effective January 29, 2024 (ARd43)

Current EPA-Approved Regulations in the Arkansas SIP

Texas SIP: 30 TAC 117.570. Trading; SIP effective 2000.10.31

Texas SIP: 30 TAC 117.301-117.321: Adipic Acid Manufacturing; SIP effective 2000.12.26

Texas SIP: 30 TAC 117.510. Compliance Schedule For Utility Electric Generation; SIP effective 2000.04.03

Texas SIP: 30 TAC 116.18. Electric Generating Facility Permits Definitions; SIP effective 2011-02-10 (TXd124)

Texas SIP: 30 TAC 117.601. Gas-Fired Steam Generation; SIP effective 2000.04.03

Arkansas SIP: Reg 19, Chap 6: Upset and Emergency Conditions, SIP effective November 22, 2023 (ARd42) to January 28, 2024

AR SIP: Reg 19, Chap 6: Upset and Emergency Conditions

GHG PSD Permitting in EPA's South Central Region

GHG PSD Permit Rescission in Texas

Greenhouse Gas RESTful Data Service

Search the GHG data for individual facilities by name, or location or filter the data set by state or county, industrial sectors, annual facility emissions thresholds and greenhouse gases.

Class I Redesignation

Re-designation is one of the tools available to tribes (and states) under the CAA to afford special protection to air quality.

RCRAInfo Search User Guide

Hazardous waste information is contained in the Resource Conservation and Recovery Act Information (RCRAInfo), a national program management and inventory system about hazardous waste handlers.

Other Clean Water Act Test Methods: Chemical

Methods for analysis of chemical pollutants in wastewater. These methods are not approved under 40 CFR Part 136, but may be of interest to regulated entities, permitting authorities and the public.

PCS-ICIS Customized Search User Guide

The Permit Compliance System (PCS) provides information on companies which have been issued permits to discharge waste water into rivers.

Water Enforcement

EPA enforces requirements under the Clean Water Act (CWA) and Safe Drinking Water Act (SDWA).

CWA-09-2025-0119: Engineering/Remediation Resources Group Inc., Martinez, CA; Consent Agreement and Final Order

Consent agreement and final order in the matter of Engineering/Remediation Resources Group, Inc. (Respondent) for violations of the Clean Water Act (CWA) at its facility in the Village of Aua, on the island of Tutuila in American Samoa.

Arkansas SIP: Reg 19, Chap 10: Regulations for the Control of Volatile Organic Compounds in Pulaski County, SIP effective November 22, 2023 (ARd42) to January 28, 2024

AR SIP: Reg 19, Chap 10: Regulations for the Control of Volatile Organic Compounds in Pulaski County

Texas SIP: 30 TAC 117.451-117.458: Nitric Acid Manufacturing - General; SIP effective 2000.04.03

Texas SIP: 30 TAC 117.570. Trading; SIP effective 2000.04.03