Science & Technology

Engines and Vehicles Compliance Information System (EV-CIS), Documentation for Certification and Fuel Economy Modules in Light-Duty Passenger Vehicles and Trucks

Files for the passenger vehicle module in EV-CIS.

Nitrous Oxide Emissions

Information on emissions and removals of the main greenhouse gases to and from the atmosphere.

Section 4: Source Characterization

Learn about source characterization for Superfund sites. Although the Hazard Ranking System (HRS) is designed to score releases and sites, sources and areas of observed contamination play a crucial role in determining HRS pathway scores.

Assumptions and References for Household Carbon Footprint Calculator

Data Resources for State, Local, and Tribal Governments

Access data resources for state, local, and tribal governments to improve energy planning.

Lead and Copper Rule Long-Term Revisions

The goal for the Lead and Copper Rule (LCR) Long-Term Revisions is to improve public health protection provided by the by making substantive changes based on topics that were identified in the 2004 National Review.

TENORM Resources

Studies of existing TENORM sites provide information needed to select appropriate methods for estimating risks from these sites, the best ways to clean up the sites, and the most economical and environmentally friendly ways to dispose of the TENORM.

Federal Register Notices for National Drinking Water Advisory Council (NDWAC) Lead and Copper Rule Working Group (LCRWG) Meetings

The NDWAC Lead and Copper Rule Working Group was formed to provide advice to EPA in considering Long-Term Revisions to the Lead and Copper Rule. This page contains the notices announcing the group meetings.

2008 Ozone National Ambient Air Quality Standards (NAAQS)

This page provides access to all transportation conformity regulations, including final rules and rulemakings currently in progress.

CCL 3 Support Documents - Screening and PCCL Documents

Learn about the support documents for CCL 3 screening and PCCL

CCL 3 Support Documents - Universe Documents

Learn about the support documents for identifying the universe for CCL 3

Certification of Laboratories that Analyze Drinking Water Samples to Ensure Compliance with Regulations

Provides information to advance the protection of drinking water (one of EPA’s strategic goals) by ensuring drinking water compliance samples are analyzed by certified or accredited laboratories.

Tools and Resources

There is a wide variety of EPA-produced tools and external resources available to address air quality in your country.

National Coastal Condition Assessment

The NCCA is a collaborative, statistical survey of the nation's coastal waters and the Great Lakes. It is one of four national surveys that EPA and its partners conduct to assess the condition and health of the nation's water resources.

National Coastal Condition Assessment Change in Condition

Explanation of why NCCA point estimates for a given survey year may vary from those used in the change analysis

Workshop to Review Advances Made to the IRIS Process (Feb 2018)

NAS held a public workshop to review the progress made on the recommendations from the National Academies' National Research Council's May 2014 report on further improving the scientific quality of IRIS assessments.

Global Change Explorer

GCX is a collection of EPA research products (tools, data, and approaches) relevant to global change impact assessments and response planning for those impacts.

Training & Resources

Links to BMDS training, reference materials, and other learning resources

National Coastal Condition Assessment 2015 Results

Results for the National Coastal Condition Assessment 2015, including key findings, national results, and ecoregional results,

National Aquatic Resource Survey Webcasts

webasts of key findings from nla, nrsa, nwca, and ncca