Laws & Regulations

Method 325B - Volatile Organic Compounds from Fugitive and Area Sources: Sampler Preparation and Analysis

Promulgated CFR Test Method 325B Volatile Organic Compounds from Fugitive and Area Sources: Sampler Preparation and Analysis.

Method 5F - Particulate Matter Fluid Catalytic Cracking Unit

CFR Promulgated Test Method 5F PM Fluid Catalytic Cracking Unit (Particulate Matter)

Method 7D - Nitrogen Oxide - Ion Chromatography

CFR Promulgated Test Method 7D Determination of nitrogen oxide emissions from stationary sources - Alkaline-permanganate/ion chromatographic method

Technical Information Document 013 - Summary of Method 204 Package Comments

Technical Information Document 014 - Evaluation of Sampling Method for Acetonitrile Emissions

Method 7B - Nitrogen Oxide - Ultraviolet Spectrophotometry

CFR Promulgated Test Method 7B Determination of Nitrogen Oxide Emissions From Stationary Sources (Ultraviolet Spectrophotometric Method)

Method 28 WHH for Measurement of Particulate Emissions and Heating Efficiency of Wood-Fired Hydronic Heating Appliances

This test method applies to wood-fired hydronic heating appliances

Method 3B - Oxygen and Carbon Dioxide Concentrations - Orsat Analyzer

CFR Promulgated Test Method 3B Oxygen and Carbon Dioxide Concentrations using an Orsat Analyzer.

Water Quality Restoration and Protection in the U.S.

Water quality restoration and protection in the United States is based on assessing waters and taking actions to restore or protect them.

GHGRP State and Tribal Fact Sheet

Interactive charts and maps for state, EPA region, sector, and greenhouse gas based on the most current Greenhouse Gas Reporting Program data, using an embedded Qlik Sense dashboard. Also includes data downloads.

GHGRP Electronics Manufacturing Sector Profile

EPA's Greenhouse Gas Reporting Program periodically produces detailed profiles of the various industries that report under the program. The profiles available for download below contain detailed analyses for the Electronics Manufacturing industry.

West Seminole San Andres Unit

MRV Plan and Decision for West Seminole San Andres Unit

Archive of GHGRP Metal Sector Profile

EPA's Greenhouse Gas Reporting Program periodically produces detailed profiles of the various industries that report under the program. The profiles available for download below contain detailed analyses for the Metals industry.

Clarification Regarding "Phased" Total Maximum Daily Loads

The memorandum clarifies the "Guidance for Water Quality-Based Decisions: The TMDL Process", by explaining EPA's interpretation of the term "phased TMDL" as used in EPA guidance.

PCB TMDL Handbook

The documents provides regions, states and other stakeholders with a compendium of information for use in developing TMDLs for waterbodies impaired by polychlorinated biphenyls (PCBs).

National Clarifying Guidance for 1998 State and Territory Clean Water Act Section 303(d) Listing Decisions

The guidance clarifies several key policies related to listing of waters under section 303(d) for the 1998 listing cycle.

TMDL Effectiveness Monitoring Data and Plans

A series of guides for TMDL effectiveness monitoring data and plans.

Reports of Title V Operating Permit Program Evaluations in EPA's South Central Region

This is the repository for reports evaluating Title V Operating Permit Programs conducted by EPA Region 6 personnel.

Defense Production Act

Information on the Defense Production Act including how to use the DPA and FAQS for the Water Sector.

EPA-Approved Mojave Desert Air Quality Management District (AQMD) Regulations in the California SIP

Documents and tables containing EPA approved and compiled rules and regulations for the Mojave Desert Air Quality Management District (AQMD) portion of the California State Implementation Plan (SIP).