Laws & Regulations

EPA-Approved Nonregulatory Provisions and Quasi-Regulatory Measures in the Hawai'i SIP

EPA approved Nonregulatory Provisions and Quasi-Regulatory Measures in the Hawai'i State Implementation Plan (SIP). EPA's Pacific Southwest Office maintains these tables and will update them to reflect any changes.

TRI State Contacts

TRI reporting facilities may contact the TRI coordinator for their state with questions about complying with TRI reporting requirements and TRI training opportunities.

Public Notices of Lead Exceedances in Local Water Systems in the Pacific Southwest

As required by the Safe Drinking Water Act, EPA is notifying communities of lead action level exceedances when a water system fails to provide a timely notice including potential health effects and what actions people can take to reduce their exposure.

EPA Approved Source-Specific Requirements in the Idaho SIP

EPA approved state source-specific requirements in the Idaho air quality State Implementation Plan (SIP) (40 CFR Part 52.670(d)).

2013 Vision for Implementing the CWA Section 303(d) Impaired Waters Program Responsibilities

A vision detailing enhancements made to the Clean Water Act 303(d) Program informed by the experience gained over the past two decades in assessing and reporting on water quality and in developing approximately 65,000 TMDLs.

First Reconsideration Decision and Rationale: Nutrient and Sediment TMDLs for the Indian Creek Watershed, Pennsylvania

Reconsideration Decision and Rationale: Nutrient and Sediment TMDLs for the Indian Creek Watershed, Pennsylvania: Established by the U.S. Environmental Protection Agency, Region 3, Philadelphia, PA. March 21, 2014. 6 Documents, below

Clean Water Act Section 303(d): Impaired Waters and Total Maximum Daily Loads (TMDLs)

The 303(d) program provides guidance and technical resources to assist States in submitting lists of impaired waterbodies and the development of Total Maximum Daily Loads of the pollutant causing the impairment.

EPA Approved Nonregulatory Provisions and Quasi-Regulatory Measures in the Idaho SIP

EPA approved nonregulatory provisions and quasi-regulatory measures in the Idaho air quality State Implementation Plan (SIP) (40 CFR Part 52.670(e)).

Operating Permit Timeline for Oklahoma

Part 70 Title V Operating Permit Timeline for Oklahoma

Summary of Pinehurst PM-10 Nonattainment Area Plan

Summary of the Pinehurst PM-10 Nonattainment Area Plan under the Idaho air quality State Implementation Plan (SIP).

Chemical Waste Management Inc. Kettleman Hills Facility, Kings County, CA

Information about Chemical Waste Management Inc. Kettleman Hills Facility (KHF), a commercial hazardous and chemical waste landfill located southwest of Kettleman City. EPA regulates the handling of PCB waste at this facility.

Regulatory Flexibility for Small Entities

The Regulatory Flexibility Act provides small entities with an expanded opportunity to participate in the development of certain regulations.

Great Lakes Initiative (GLI) Clearinghouse

The Great Lakes Initiative Toxicity Clearinghouse is a central location for information on criteria, toxicity data, exposure parameters and other supporting documents used in developing water quality standards in the Great Lakes watershed.

Analysis of the Proposed MATS Risk and Technology Review (RTR)

IPM analyses of the Proposed MATS Risk and Technology Review (RTR)

Region 5 Underground Injection Control Transfer of Ownership Requirements

List of documents that an underground injection well must submit to U.S. EPA Region 5 in order to complete a transfer of permit or rule-authorization.

Ohio Operating Permit Program Documents

Ohio Title V Operating Permit Program Approval History

Cross-State Air Pollution Rule - Resources For Implementation

Information for states and the regulated community for implementing the Cross-State Air Pollution Rule

Section 608 Technician Certification Requirements

Certifications for technicians who maintain, service, repair, or dispose of equipment that could release ozone depleting refrigerants or, after January 1, 2018, substitute refrigerants into the atmosphere.

Report: Audit of the EPA’s Grants Workforce Planning

Evaluation of the U.S. Virgin Islands’ Capacity to Manage and Use Infrastructure Investment and Jobs Act Funds for Clean Water and Drinking Water Infrastructure Improvements

Audit of the U.S. Chemical Safety and Hazard Investigation Board’s Compliance with the Federal Information Security Modernization Act for Fiscal Year 2025