Science & Technology

Photochemical Modeling Tools

The Air Quality Modeling Group has developed the Modeled Attainment Test Software (MATS).

Podcast: Fiscal Year 2024 Top Management Challenges

Laboratory Environmental Sample Disposal Information Document - Companion to Standardized Analytical Methods for Environmental Restoration Following Homeland Security Events (SAM) – Revision 5.0

Document is intended to provide general guidelines for use by EPA and EPA-contracted laboratories when disposing of samples and associated analytical waste following use of the analytical methods listed in SAM.

Water Quality eXchange Sharing Biological Data

This document is a presentation containing an overview of Water Quality eXchange (WQX), WQX data submittal and retrieving data from the STOrage and RETrieval (STORET) Warehouse.

Podcast: FY24 CSB Top Management Challenges

Podcast: The EPA Clean School Bus Program Could Be Impacted by Utility Delays

National Walkability Index User Guide and Methodology

A Methodology and User Guide for using the National Walkability Index, including examples illustrating the range of scores and how the index varies with the built environment.

Healthy Watersheds Listserv

Instructions for the Healthy Watersheds Protection email listerv

Podcast: The EPA Needs to Improve the Completeness and Accuracy of the Obligation and Outlay Information That It Reports in USAspending.gov

Podcast: EPA OIG Investigative Priorities Podcast

Resources Preservation 2018 Annual Monitoring Reports

Document page for ARG 2018 annual monitoring reports

Learn About Low Rolling Resistance (LRR) New and Retread Tire Technologies

This page provides information about low rolling resistance tires that are SmartWay verified.

Podcast: FRAUDCAST - Business Email Compromise Schemes

FY 2024 U.S. Chemical Safety and Hazard Investigation Board Management Challenges

At a Glance, December 6, 2023. The OIG is required by statute to prepare an annual report summarizing what the OIG considers the “most serious management and performance challenges facing the agency.”

FY 2024: Top Management Challenges

Report #24-N-0008, November 15, 2023. The OIG is required by statute to prepare an annual report summarizing what the OIG considers the “most serious management and performance challenges facing the agency.”

FY 2025: Top Management Challenges

At a Glance, November 15, 2024. The OIG is required by statute to prepare an annual report summarizing what the OIG considers the “most serious management and performance challenges facing the agency.”

Letter to Mr Mowrey on the status of RFR 13001

Notification to Mr Mowrey that the EPA's goal is to provide a final status update within 90 business days

Re: Request from the Phthalate Esters Panel of the American Chemistry Council for correction of EPA's Action Plan for Phthalate Esters

Request for Correction Reporting Numerous Factual Errors Contained in the EPA's Phthalates Action Plan Issued December 2009

Letter to Ms. Molly A. O'Neill from John Engler on behalf of The National Association of Manufacturers

A letter from the NAM to the EPA that accompanied a request for reconsideration in accordance with the procedures set forth in Section 8.6 of EPA's Information Quality Guidelines

Dissecting EPA's Response to the Problems of Self-Administration and Self-Reporting Respiratory Function Tests

Table comparing sections of EPA's Response to the Non Sequiturs and Errors contained in that section of the response