Regulated Community

Advance Notice of Proposed Rulemaking and Related Materials on Lead Emissions From Piston-Engine Aircraft Using Leaded Aviation Gasoline

Includes links to Federal Register notices, fact sheets, request public comment, petitions, and EPA memorandums.

Advance Notice of Proposed Rulemaking for Control of Emissions From Nonroad Large Spark-Ignition Engines, Recreational Engines (Marine and Land-Based), and Highway Motorcycles

EPA is publishing an Advance Notice of Proposed Rulemaking concerning emissions from new nonroad vehicles and engines that are currently unregulated, and highway motorcycles.

California Greenhouse Gas Waiver Request

On July 8, 2009, EPA granted a waiver of Clean Air Act preemption to California for its greenhouse gas emission standards for motor vehicles beginning with the 2009 model year.

Direct Final Rule: Amendments to Emission Requirements Applicable to New Nonroad CI Engines at or Above 37 Kilowatts: Provisions for Replacement CI Engines and the Use of On-Highway CI Engines in Nonroad Vehicles

Amendments adopting the original replacement-engine exemption for nonroad engines and nonroad vehicle manufacturers to use certified highway engines in nonroad vehicles in certain circumstances.

Direct Final Rule for Fuel Economy Regulations for Automobiles: Technical Amendments and Corrections

EPA is taking direct final action amending and correcting portions of the Environmental Protection Agency’s existing fuel economy and emission regulations.

Final Rule for Control of Air Pollution from New Motor Vehicles: Heavy-Duty Engine and Vehicle Standards and Highway Diesel Fuel Sulfur Control Requirements

Includes Federal Register notice, Regulatory Impact Analysis, Response to Comments, rule history, fact sheet and technical support document.

Direct Final Rule for Heavy-Duty Engine and Vehicle, and Nonroad Technical Amendments

EPA and NHTSA are each adopting corrections to provisions in our respective Medium- and Heavy-Duty Greenhouse Gas Emissions and Fuel Efficiency final rule issued on September 15, 2011.

Proposed Rule and Related Materials for Control of Emissions From Nonroad Spark-Ignition Engines and Equipment

Includes links to Federal Register notice, Final Rule, fact sheet, draft regulatory impact analysis and technical studies.

Direct Final Rule for In-Use Testing for Heavy-Duty Diesel Engines and Vehicles; Emission Measurement Accuracy Margins for Portable Emission Measurement Systems and Program Revisions

Includes rule summary, links to Federal Register, Technical Support Document, fact sheet and additional resources.

CAA Permit Public Comment Opportunities in Region 8

EPA-issued CAA permits available for public comment in Region 8, serving Colorado, Montana, North Dakota, South Dakota, Utah, Wyoming, and 27 Tribal Nations.

CAA Permit Actions Pending by EPA in Region 8

EPA-issued CAA permits pending in Region 8, serving Colorado, Montana, North Dakota, South Dakota, Utah, Wyoming, and 27 Tribal Nations.

Final Public Notice for Choctaw Defense McAlester

Notice regarding final action on a minor source permit for Choctaw Defense McAlester

Title V Operating Permit Public Petition Deadlines in Region 8

The report linked below lists Proposed Title V Operating Permits submitted to Region 8 and undergoing EPA's 45-day Review, including the start and end dates for EPA's 45-day review period and the start and end dates for the public's 60-day petition period.

National Environmental Policy Act

NEPA requires federal agencies to determine if their proposed actions will have significant environmental effects. EPA reviews and comments on these Environmental Impact Statements (EIS) and provides public notification and access to these documents.

Lead Policy and Guidance

This page describes policy and guidance related to EPA's regulation of lead in paint, dust and soil, lead in water, lead in air, and lead waste disposal.

RMP*Comp

You can use this free software program to complete the Off-site Consequence Analyses (both worst case scenarios and alternative scenarios) required under the Risk Management Program rule, so that you don't have to do calculations by hand.

General RMP Guidance - Appendix E: Supplemental Risk Management Program Guidance for Ammonia Refrigeration Facilities

Additional information for food processors, food distributors, refrigerated warehouses, and any other facility with ammonia refrigeration system. Includes guidance on exemptions, threshold quantity, offsite consequence analysis.

Documents Related to the Hazardous Waste Listing of Chlorinated Aliphatics Production Wastes

Rulemaking information about the two waste streams from chlorinated aliphatics production that are listed as hazardous including links to the proposed and final rules and a fact sheet about the final rule.

Frequent Questions about the Delisting Risk Assessment Software (DRAS)

Frequent technical questions such "Surface Impoundment Requires Corrections", "How Do I Assess Toxicity Characteristic Leaching Procedure (TCLP) or Leachability in a Liquid Waste Sample?", "Aggregate Hazard Index and Cancer Risk Output Table Correction".

Final Rule: Confidentiality Determinations for Hazardous Waste Export and Import Documents

With this rule, EPA is finalizing regulations regarding the export and import of hazardous wastes from and into the United States.