Data and Tools
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More Information about the CyAN Project or the CyAN App
Contact information for the CyAN project.
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AP 42, Fifth Edition, Volume I Chapter 7: Liquid Storage Tanks
AP 42, Fifth Edition, Volume I Chapter 7: Liquid Storage Tanks
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GHGRP 2021: Supplier Highlights
Fuel and industrial GHG supplier highlights of 2021 emissions of greenhouse gases in EPA's Greenhouse Gas Reporting Program.
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Tribal Green Building Code Guidance
Ordinance, Code Language and References guidance for Tribes using the Tribal Green Building Codes toolkit and resources.
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AQUATOX 3.1 Fact Sheet
AQUATOX Release 3.1 includes numerous enhancements designed to improve model performance, more closely match data requirements with generally available data, improve data manipulation and analysis, and increase user friendliness.
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Guidance for Email Transmittal of Air Permit Documents from Louisiana sources to R6AirPermitsLa@epa.gov
Provides email subject text and file naming conventions for people sending air permit related information to EPA Region 6 for sources located in Louisiana
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AQUATOX Release 3.2 Fact Sheet
AQUATOX Release 3.2 was designed to extend the existing AQUATOX estuarine version to include improved capabilities for situations encountered in the nearshore marine environment. Several changes were required to model food webs in the marine environment.
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Latest Version of MOtor Vehicle Emission Simulator (MOVES)
Background, guidance, and installation information for the latest version of EPA's MOtor Vehicle Emission Simulator (MOVES).
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2025 PM2.5 Exceedances
View 2025 PM2.5 Exceedances for New England.
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SDWIS Federal Reporting Services Data Dictionary
SDWIS Federal Reports Search system data dictionaries for the reports, filters, and data fields available within the system.
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Wetlands Programs Adopted by States and Tribes and Analysis of Core Components
Information about State, Tribal and Local Initiatives
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How Do I Develop a Wetlands Regulatory Program?
Information on how to develop a regulatory program and how to implement it
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How Do I Develop a Wetlands Monitoring Program?
Information on how to develop a monitoring program
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RSEI and NATA
A summary comparison of RSEI and the National Air Toxics Assessment (NATA)
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Sediment Oxygen Demand
Field Branches Quality System and Technical Procedures
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Field Specific Conductance
Field Branches Quality System and Technical Procedures
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Procedures about Global Positioning System for the Laboratory Services and Applied Science Division
Field Branches Quality System and Technical Procedures
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Procedures for Measuring Wastewater Flow
Field Branches Quality System and Technical Procedures
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Emerging Viral Pathogen Claims for SARS-CoV-2: Submission Information for Registrants
Emerging Viral Pathogen Claim Submission Information for Registrants information. List N: Disinfectants for use against SARS CoV 2 that causes CoVID 19
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EPA Subaward Cross Cutter Requirements
To assist recipients or “pass-through entities” who make subawards under the Uniform Grant Guidance to identify potential Federal requirements that may apply to to subrecipients on EPA funded projects per 2 CFR 200.331(a)(2).