Laws & Regulations

Air Issues in Arkansas

Air Programs and Pollution Issues in Arkansas

Routine Maintenance, Repair and Replacement

Explanation of the meaning of Routine Maintenance, Repair and Replacement

Physical Change or Change in the Method of Operation

Explanation of Physical Change or Change in the Method of Operation

Plantwide Applicability Limits (PALs)

Explanation of the meaning of Plantwide Applicability Limits (PALs)

International Transport of Air Pollution

Draft Guidance on the Preparation of Clean Air Act Section 179B Demonstrations for Nonattainment Areas Affected by International Transport of Emissions

Secondary Emissions

Explanation of the meaning of Secondary Emissions

Learn About Particle Pollution Designations

Basic information about Particle Pollution Designations

GU0110019: Apra Harbor Wastewater Treatment Plant and Collection System, Santa Rita, Guam

Documents related to NPDES Permit #GU0110019 for U.S. Naval Base Guam Apra Harbor Wastewater Treatment Plant, Santa Rita, Guam.

Southern Ute Indian Tribe Operating Permit Program Approval History

Wyoming Operating Permit Program Approval History

Utah Operating Permit Program Approval History

Region 8 Title V Program Evaluations

Commence Construction

Explanation of the meaning of Commence Construction

Excess Emissions During Startup, Shutdown, and Malfunction

Explanation of Excess Emissions During Startup, Shutdown, and Malfunction

Fugitive Emissions

Explanation of the meaning of Fugitive Emissions

2017 Settlement Agreement between EPA and Pebble Limited Partnership

EPA's May 11, 2017 Settlement Agreement with Pebble Limited Partnership to resolve litigation from 2014 relating to EPA's prior work in the Bristol Bay watershed in Alaska.

EPA's Final Financial Assistance Conflict of Interest Policy

EPA has established the following revised interim policy governing disclosure of actual and potential conflicts of interest (COI Policy) by applicants for, and recipients of, federal financial assistance awards from EPA.

Relevant Guidance Index

List of documents included in the NSR/PSD Policy and Guidance Database.

Temporary Emissions

Explanation of Temporary Emissions

MPRSA Research Permits

Research permits under the MPRSA may be issued by the EPA for the disposition of materials into the ocean as a part of a research project. Examples of activities authorized with an MPRSA research permit are provided.