Laws & Regulations

Guidelines for Reproductive Toxicity Risk Assessment

These guidelines discuss the scientific basis for concern about exposure to agents that cause reproductive toxicity and describe the principles and procedures to be followed in conducting risk assessments for reproductive toxicity.

Subpart T: National Emission Standards for Radon Emissions From the Disposal of Uranium Mill Tailings

Subpart T limits radon-222 emissions from uranium mill tailings piles that are no longer operational at Department of Energy (DOE) facilities. Subpart T does not apply to NRC licensees.

40 CFR Part 192: Proposed Rulemaking and Background Documents

View rule review and background documents related to "Health and Environmental Protection Standards for Uranium and Thorium Mill Tailings” (40 CFR Part 192).

Marine Protection Permitting in EPA’s Pacific Southwest (Region 9)

Overview of marine protection permitting in EPA Pacific Southwest. Includes materials dumped in the Region, MPRSA permits issues, dredged material testing guidance, ocean site descriptions and information, regional dredging teams and other partnerships.

A Sediment Testing Reference Area Database for the San Francisco Deep Ocean Disposal Site (SF-DODS)

EPA established and maintains a San Francisco Deep Ocean Disposal Site (SF-DODS) reference area database of previously collected sediment test data. Several sets of sediment test data have been successfully collected from the SF-DODS reference area.

Draft Class II Revoke and Reissue Draft Permit, Slawson Exploration Co., Inc. ND22184-08837 Big Bend 1-5 SWD, Mountrail County, North Dakota

Public Notice for a Class II UIC Permit Revoke and Reissue

Comments Due Date: August 1, 2026

Monitoring, Assessment and TMDLs: Arizona

An overview of monitoring, assessment and TMDLs in Arizona.

Chronology of CWA Section 404(q) Actions

A timeline of Clean Water Act Section 404(q) actions including links to relevant documents.

Issue Resolution under CWA Section 404(q)

Background information regarding EPA actions taken pursuant to Clean Water Act Section 404(q).

Responsibilities of Federal Agencies To Protect Migratory Birds

Executive Order 13186 directs executive departments and agencies to take certain actions to further implement the Act.

San Francisco Deepwater Ocean Disposal Site Monitoring Reports

EPA Pacific Southwest, Region 9, conducts oceanographic surveys to monitor the impacts of regulated dumping at the San Francisco Deepwater Ocean Disposal Site (SF-DODS) ODMDS

EPA-Approved Air Pollution Control Regulations for Pima County, AZ

EPA approved Air Regulations and Statutes for Pima County, Arizona.

OPA-09-2016-0003/0004: Paul Oil Company Inc.

Proposed settlements, recorded in two Consent Agreements and Final Orders (“Proposed Consent Agreements”), between EPA and Paul Oil Company, Inc., to resolve two civil administrative penalty proceedings. EPA Dockets: OPA-09-2016-0003/OPA-09-2016-0004.

ESA and EFH Consultation Documents for Five Hawaii Ocean Disposal Sites

The final consultation package includes EPA’s analyses for ESA and EFH and the responses from the services.

Hawaii Ocean Dredged Material Disposal Sites Monitoring Reports

Region 9 conducts oceanographic surveys to monitor the impacts of regulated dumping at the Hilo, HI and South Oahu, HI Ocean Dredged Material Disposal Sites.

How to Certify Your Risk and Resilience Assessment or Emergency Response Plan

Certification process for community drinking water systems to comply with America's Water Infrastructure Act (AWIA) section 2013 risk and resilience assessment and emergency response plan requirements.

Managing Air Quality - Program Implementation

Describes elements for the set of activities to ensure that control strategies are put into effect and that air quality goals and standards are fulfilled, permitting programs, and additional resources related to implementation under the Clean Air Act.