Laws & Regulations

Description and History of the MOBILE Highway Vehicle Emission Factor Model

MOBILE is an EPA model for estimating pollution from highway vehicles. It has been superseded by the Motor Vehicle Emission Simulator (MOVES). MOBILE calculates emissions of hydrocarbons (HC), oxides of nitrogen (NOx) and carbon monoxide (CO).

Certification Materials for Marine SI Engines/Equipment

Use these tutorials as part of certification for nonroad spark-ignition engines.

Certification Materials for Small Nonroad Spark-Ignition (NRSI) Engines/Equipment

Use this template for small SI certification in EV-CIS.

Certification Materials for Nonroad Spark-Ignition (NRSI) Evaporative Components/Equipment

Use these files for nonroad evaporative certification in EV-CIS.

Report Forms and Guidance for Defects and Recalls under 40 CFR Part 85, Subparts S and T

Forms and step-by-step guidance as part of the compliance reporting process for defects and recalls under 40 CFR Part 85, subparts S and T.

2009 Commitment Letters for MY 2012-2016 Light-Duty National Program

The State of California and major automakers showed their support for a national program of light-duty GHG and CAFE standards by sending letters to the agencies in May 2009.

2010 Commitment Letters for MY2017-2025 Light-Duty and MY 2014-2018 Heavy-Duty Programs

The State of California and major automobile and truck manufacturers showed their support for a national heavy-duty GHG and fuel efficiency program as well as further light-duty GHG and CAFE standards by sending letters to the agencies in May 2010.

Amendments Related to Marine Diesel Engine Emission Standards – Final Rule

EPA proposes to amend the national marine diesel engine program to provide relief provisions to address concerns for certified Tier 4 marine diesel engines commercial vessels. And makes a technical correction to the diesel fuel regulations.

Direct Final Rule: Nonroad Diesel Technical Amendments and Tier 3 Technical Relief Provision

Rule making certain technical corrections to the rules establishing emission standards for nonroad diesel engines and amending those rules to provide manufacturers with a production technical relief provision for Tier 3 equipment.

Draft Permit for Town of Hampden CSO - Souadabscook Stream Pump Station, Hampden, ME, ME0102512

A public notice of a draft permit for Town of Hampden CSO - Souadabscook Stream Pump Station, Hampden, ME, ME0102512.

• Geographic Locations: Maine

Western and Central Gulf of America Offshore Oil & Gas NPDES Program

This page contains information about the Western and Central Gulf of America Offshore Oil and Gas NPDES Program.

EPA Summary of Agreement: General Electric/Pittsfield - Housatonic River Site

Summary of remediation and restoration agreements for the General Electric/Pittsfield - Housatonic River Site

Evaluation of the Status of American Recovery and Reinvestment Act-Funded Brownfield Site Cleanups

[Paste the description here.]

Method 7 - Nitrogen Oxide

CFR Promulgated Test Method 7 Determination of nitrogen oxide emissions from stationary sources

Method 205 - Gas Dilution Calibration

Method 205 Verification of Gas Dilution Systems for Field Instrument Calibrations

Frequent Questions for Consumers about the Formaldehyde Standards for Composite Wood Products Act

Questions to address concerns general consumers may raise regarding EPA's final rule to implement the Formaldehyde Standards for Composite Wood Products Act

Updated Data on TSCA CBI Reviews Now Available

Listserv announcing updated data on CBI reviews

Risk Management for C.I. Pigment Violet 29

Risk management page for PV29 to be published upon publication of final risk assessment for PV29.

Risk Management for Cyclic Aliphatic Bromide Cluster (HBCD)

EPA's existing chemicals programs address pollution prevention, risk assessment, hazard and exposure assessment and/or characterization, and risk management for chemicals substances in commercial use.

Risk Management for Carbon Tetrachloride

EPA's existing chemicals programs address pollution prevention, risk assessment, hazard and exposure assessment and/or characterization, and risk management for chemicals substances in commercial use.