Laws & Regulations

Final Rule for Control of Air Pollution From New Motor Vehicles and New Motor Vehicle Engines; Regulations Requiring Onboard Diagnostic Systems on 2010 and Later Heavy-Duty Engines Used in Highway Applications Over 14,000 Pounds

Includes rule summary, rule history, links to Federal Register notices, summary and analysis of comments and fact sheets.

Proposed Rule and Related Materials for Control of Air Pollution From New Motor Vehicles and New Motor Vehicle Engines; Regulations Requiring Onboard Diagnostic Systems on 2010 and Later Heavy-Duty Engines Used in Highway Applications Over 14,000 Pounds

Includes links to Federal Register citation, fact sheet and technical support document.

Final Rule for Control of Air Pollution From New Motor Vehicles: Tier 2 Motor Vehicle Emissions Standards and Gasoline Sulfur Control Requirements

The U.S. Environmental Protection Agency (EPA) is announcing more protective tailpipe emissions standards for all passenger vehicles, including sport utility vehicles (SUVs), minivans, vans and pick-up trucks.

Final Rule for Control of Emissions of Air Pollution From Locomotive Engines and Marine Compression-Ignition Engines Less Than 30 Liters per Cylinder

Proposed Rule and Related Materials for Control of Emissions of Air Pollution From Locomotive Engines and Marine Compression-Ignition Engines Less Than 30 Liters per Cylinder

Includes links to Federal Register notice, advance notice of rule making, fact sheets, draft regulatory impact analysis, and final rule.

Final Rule for Control of Emissions of Air Pollution From New Marine Compression Ignition Engines at or Above 37 kW

The Tier 2 program is part of a comprehensive approach to reducing the impacts of motor vehicles on air quality and public health.

Proposed Rule and Related Materials for Control of Emissions of Air Pollution From New CI Marine Engines at or Above 37 kW

Includes links to Federal Register notice, advance notice of rulemaking, fact sheets, draft regulatory impact analysis and final rule.

Final Rule for Control of Emissions of Air Pollution From New Motor Vehicles: In-Use Testing for Heavy-Duty Diesel Engines and Vehicles

Information on rule establishing manufacturer-run, in-use emissions testing program for heavy-duty diesel trucks. Includes rule history, rule summary, Federal Register notice, and fact sheet.

Final Rule for Control of Emissions of Air Pollution From Nonroad Diesel Engines

Includes rule summary, CFR citations, Federal Register notice, Regulatory Impact Analysis, rule history and fact sheet.

Final Rule for Control of Emissions of Hazardous Air Pollutants From Mobile Sources - 40 CFR Parts 80 and 86

Includes rule summary, rule history, technical support document, response to comments and fact sheet.

Final Rule for Control of Emissions of Hazardous Air Pollutants From Mobile Sources: Default Baseline Revision

Includes rule history, Federal Register notice, fact sheet and CFR citations.

Final Rule for Control of Emissions From Highway Motorcycles

In this action we are adopting revised exhaust emission standards for currently regulated highway motorcycles. Includes rule summary, rule history and additional resources.

Proposed Rule for Control of Emissions From Spark-Ignition Marine Vessels and Highway Motorcycles

Includes links to Federal Register notice, fact sheets, draft regulatory support document, FAQs and final rule.

EPA Approved Regulations in the North Dakota SIP

Water Quality Standards Regulations: Louisiana

Information related to Water Quality Standards for Louisiana.

Title V Operating Permits Public Petitions Deadlines in Region 2

Air permitting in EPA's Northeast region, Region 2; serving New Jersey, New York, Puerto Rico, the U.S. Virgin Islands and 8 Tribal Nations

Marine Protection, Research and Sanctuaries Act Permits

The disposition of material in the ocean cannot occur unless a permit is issued under the MPRSA. Information is provided about who needs a permit, marine protection criteria, types of MPRSA permits, and permit conditions.

Method 107 - Vinyl Chloride Content of In-process Wastewater Samples

Promulgated CFR Method 107 Determination of Vinyl Chloride Content of In-Process Wastewater Samples, and Vinyl Chloride Content of Polyvinyl Chloride Resin Slurry, Wet Cake, and Latex Samples

Summary of EPA Emission Test Methods

This document provides the publication date and rule status for the air emission test methods, performance specifications and quality assurance procedures. It is updated by the Measurement Technology Group, part of the Air Quality Assessment Div., OAQPS.

Method 28A - Air to Fuel Burn Rates - Wood Fired Appliances

CFR Promulgated Test Method 28A Measurement of air to fuel ratio and minimum achievable burn rates for wood-fired appliances