Laws & Regulations

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

CAA Permits Issued by EPA in Region 8

CAA permits issued by Region 8, serving Colorado, Montana, North Dakota, South Dakota, Utah, Wyoming, and 27 Tribal Nations.

Premanufacture Notices (PMNs) and Significant New Use Notices (SNUNs) Table

This table is a list of PMNs and SNUNs submitted to the EPA.

Exemptions Table

This page describes what happens to a premanufacture or exemption notice that is submitted to the EPA.

CAA Permitting on the Southern Ute Indian Reservation

Air permitting on the Southern Ute Indian Reservation.

Air Technology Standards in Region 7

NSPS, NESHAPs and MACT standards are applicable requirements under the Title V operating permit program. This is a resource for permit writers and reviewers to learn about the rules and explore other helpful tools.

South Carolina Proposed Title V Permits

The following permits have been submitted to EPA Region 4 as Proposed Title V permits. While EPA has the right to a 45-day review period for all Proposed Title V permits, EPA Region 4 targets only a subset of these permits for comprehensive review.

Risk Evaluation for Asbestos

risk evaluation for asbestos

Air Permitting Delegations and Program Approvals in Region 10

EPA delegations and approvals for state and local Clean Air Act permitting programs in Region 10 (Alaska, Idaho, Oregon, Washington.)

Risk Management for Asbestos, Part 1: Chrysotile Asbestos

Risk management page for final risk evaluation for asbestos, part 1: chrysotile asbestos

Water Quality Standards Handbook

The Water Quality Standards Handbook is a compilation of EPA's water quality standards (WQS) program guidance including recommendations for states, authorized Tribes, and territories in reviewing, revising, and implementing WQS.

Certification for Nonroad Compression-Ignition (NRCI) Engines

Steps for certifying nonroad heavy equipment with EPA.

Reviewing National Ambient Air Quality Standards (NAAQS): Scientific and Technical Information

This area provides information about the current or prior review of any of the six NAAQS. These pollutants are common in outdoor air, and considered harmful to public health and the environment.

Tribal NSR Regulations Database

6 source category rules for Indian Country

SafeWater Multi-Contaminant Benefit-Cost (MCBC) Model and Associated Files – Final Rule

Webpage for SafeWater Multi-Contaminant Benefit-Cost (MCBC) model files. The SafeWater MCBC model was used to estimate the benefits and costs of the national primary drinking water regulation for per-and polyfluoroalkyl substances (PFAS).

Presidential Announcements and Letters of Support related to Greenhouse Gas Emissions

These are Presidential announcements and letters related to EPA’s greenhouse gas emissions standards and NHTSA’s fuel efficiency standards for cars and trucks, and stakeholder commitment letters.

Military Munitions/Unexploded Ordnance

This is the Military Munitions/Unexploded Ordnance section of the Federal Facilities Restoration and Reuse Office's Web site.

R1 State Permitting Authority Actions

Find Title V permit actions for each New England state in Region 1.

CAA Permitting in Vermont

Information on permitting in Vermont and EPA's oversight.

CAA Permitting in Rhode Island

Information on permitting in Rhode Island and EPA's oversight.