Science & Technology

EPA Southeast leaders visited Oak Ridge Reservation NPL Site and signed a Record of Decision

EPA News Release: EPA Southeast leaders visited Oak Ridge Reservation NPL Site and signed a Record of Decision

• Release Date: June 18, 2025

Certification for Heavy-Duty (HD) Commercial Trucks and Buses and Onroad HD Engines

Steps for certifying an onroad commercial trucks and buses with EPA.

Compliance Reporting for Light-Duty Passenger Cars and Trucks

Steps for compliance reporting with EPA for onroad passenger vehicles.

Certification for Non-Electric Motorcycles

Steps for certifying non-electric motorcycles with EPA.

Software Release Notes for the Engines and Vehicles Compliance Information System (EV-CIS)

These release notes are applicable across all industry sectors for EV-CIS.

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.

Checklist for Quality Concerns About Using Data from Other Sources

A step-by-step guide to ensure that secondary data is used in an appropriate manner.

EPA Request for Correction 12004 (Exhibit E1)

EPA Request for Correction 12004 (Exhibit E1)
California Department of Health: Annual Compliance Report 2009

Water Quality Standards Regulations: Washington, DC

Information related to Water Quality Standards for Washington, DC.

Design and Implementation of New Tools for Quality Assurance in Modeling

This guidance is designed to improve quality assurance project plans (QAPPs) for model applications, especially in the Total Maximum Daily Load (TMDL) program.

Peer Review of 2024 Draft Risk Evaluation for 1,3-Butadiene

1,3-butadiene is undergoing risk evaluation under the Toxic Substances Control Act. EPA is planning a virtual public meeting for the Science Advisory Committee on Chemicals (SACC) to review the draft risk evaluation for 1,3-butadiene in early 2025.

Agenda and Presentations for the August 16 and 17, 2017 Chemical Data Reporting (CDR) Inorganic Byproducts Negotiated Rulemaking Committee Meeting

The agenda and presentations for the Chemical Data Reporting (CDR) Inorganic Byproducts Negotiated Rulemaking Committee.

Water Quality Impacts of Nutrients Research

Information about EPA's water quality and nutrients research including hypoxia and coastal acidification

Cyanide Clarification of Free and Total Cyanide Analysis for Safe Drinking Water Act Compliance

Code of Federal Regulations entries associated with monitoring for cyanide under the Safe Drinking Water Act (SDWA).

GenRA: Release Notes

Release notes for Generalized Read Across webapp.

GenRA Manual: Other Fingerprint Types

Learn about PFAS Fingerprints in GenRA.

GenRA Manual: User-Defined Neighborhoods

Learn about PFAS Fingerprints in GenRA.

Reports and Data - National Lakes Assessment 2017

Products from the national lakes assessment 2017 including report, technical report, factsheet, data files, and data dashboard

National Lakes Assessment 2007 Results

The National Lakes Assessment samples over 1,000 lakes, ponds and reservoirs across the country. Key findings from this assessment in 2007 include the biological condition and most widespread stressors of these waterbodies.

Reports and Data - National Wetland Condition Assessment 2016

Products from the national lakes assessment 2017 including report, technical report, factsheet, data files, and data dashboard