Laws & Regulations
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Gasoline Reid Vapor Pressure
EPA regulates the vapor pressure of gasoline sold at retail stations during the summer ozone season to reduce evaporative emissions from gasoline that contribute to ground-level ozone and diminish the effects of ozone-related health problems.
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SDWA Section 1433 Frequently Asked Questions
Frequently asked questions (FAQ) for AWIA Section 2013/SDWA Section 1433, including information on compliance, certification, and requirements.
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Part 75 Emissions Monitoring Technical Questions and Answers
Provides clarification on the requirements of 40 CFR Part 75 through a series of questions and answers that can be used by units to monitor mass sulfur dioxide emissions, mass carbon dioxide emissions, nitrogen oxide rate and heat input.
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Options for Recharging Your Air Conditioner
Identifies options for addressing leaks and recharging refrigerant in motor vehicle air conditioners.
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Lead and Copper Rule Improvements: Supporting Materials
Lead and Copper Rule Improvements: Technical Materials
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WSG 212 Public Notification Implementation memo
National primary drinking water regulation Public Notification(PN) rule implementation memo, signed September 16, 2020.
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Revised Total Coliform Rule Assessments and Corrective Actions
EPA has developed the Revised Total Coliform Rule Assessment and Corrective Actions Guidance Manual for public water systems (e.g., owners and operators) to assist in complying with the requirements of the Revised Total Coliform Rule.
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Total Coliform Rule Distribution System Advisory Committee
EPA established the Total Coliform Rule Distribution System Advisory Committee (TCRDSAC) under the Federal Advisory Committee Act.
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Arsenic Rule Small Entity Compliance Guide for Public Water Systems
A guide to help public water systems understand and achieve compliance with the Arsenic Rule.
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Total Coliform Rule (TCR) Federal Register Notice
This document provides the FR notice to 40 CFR Parts 141 and 142 Drinking Water: National Primary Drinking Water Regulations; Total Coliforms (Including Fecal Coliforms and E. Coli); Final Rule (26 pp, 5 M).
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Hazardous Waste Test Methods / SW-846
The Resource Conservation and Recovery Act Test Methods for Evaluating Solid Waste: Physical/Chemical Methods (SW-846) provide guidance to analytical scientists, enforcement officers and method developers across a variety of sectors.
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Surface Water Treatment Rule Documents
The guidance on this page can be used in evaluating existing treatment processes or in considering new treatment processes or changes in treatment operation to meet SWTR treatment requirements.
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Appendices to the Economic Analysis for the Final Ground Water Rule
This document provides background information and analysis of the potential economic impacts of the Ground Water Rule (GWR).
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Radionuclides Rule
This page contains information on the Radionuclides Rule, including a summary, history, and compliance information.
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SDWA Section 1433 Compliance Data
America's Water Infrastructure Act (AWIA) Section 2013 risk and resilience assessment and emergency response plan compliance information for community drinking water systems serving a population greater than 3,300 people.
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A Revised Total Coliform Rule Guide for Small Public Water Systems
This document aims to assist small water systems serving 1,000 persons with fewer in complying with the requirements of the Revised Total Coliform Rule (RTCR). It is divided into four parts, Parts A, B, C and D.
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SDWA Section 1433 Workshops
Upcoming Safe Drinking Water Act (SDWA) section 1433/America's Water Infrastructure Act (AWIA) section 2013 workshops, as well as recordings of past workshops.
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Federal Register Notices that Proposed Adding Methods 4010, 9040B and 9045C to the SW-846 Compendium in Updates IIA and IIB
Federal Register notices for Updates II and IIB Proposed Rule and Update IIA Proposed Rule from 1993.
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Federal Register Notices for the SW-846 Third Edition Manual Update
Proposals to revise certain testing methods that are approved or required under Subtitle C of the Resource Conservation and Recovery Act (RCRA).
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Interim Guidance: Enforcement Discretion Concerning Windfall Liens (CERCLA Section 107(r))
Guidance document and frequently asked questions fact sheet on windfall liens provisions under section 107(r) of CERCLA