Laws & Regulations
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Tier I Forms and Instructions
Submission of the form is required under Section 312 of the Emergency Planning and Community Right-to-Know Act. It provides State and local officials and the public with information on the general hazard types and locations of chemicals at your facility.
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National Oil and Hazardous Substances Pollution Contingency Plan (NCP) Overview
First developed and published in 1968, this has become the federal government's blueprint for responding to spills and releases. It provides a system of accident reporting, spill containment and cleanup, and coordination among the hierarchy of responders.
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IESWTR Monthly Report for Compliance Determination - Conventional or Direct Filtration Systems Serving 10,000 or more
IESWTR Monthly Report for Compliance Determination - Conventional or Direct Filtration Systems Serving 10,000 or more
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LT1SWTR Form for Conventional or Direct Filtration < 10K
The LT1SWTR monthly report for turbidity and disinfection data contains the Daily Data Sheet for Combined Filter Effluent (CFE) Turbidity, Disinfectant Residual Data, and Individual Filter (IF) Turbidity Monitoring data.
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Regulatory Determination 2 Support Documents for Boron
Learn about Regulatory Determination 2 Support Documents for Boron
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Regulatory Determination 2 Support Documents for 1,3-Dichloropropene (Telone)
Learn about the support documents for Telone.
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Regulatory Determination 1 Support Documents for Metribuzin
Metribuzin Support Documents
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Regulatory Determination 2 Support Document for Metolachlor
Learn about the support document for metolachlor
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Regulatory Determination 2 Support Documents for Terbacil
Learn about the support documents for Terbacil.
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Recommendations for Area Designations Round 3
Letters from states recommending area designations.
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Regulatory Determination 1: Federal Register Notice and Fact Sheet
Learn about the Fact Sheet for Regulatory Determination 1
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Regulatory Determination 2 Support Documents for EPTC
Learn about the support documents for EPTC.
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Regulatory Determination 2 Support Document - Introduction
Read Chapter 1 of the support document for Regulatory Determination 2
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Regulatory Determination 1 Support Documents for Aldrin and Dieldrin
Aldrin and Dieldrin Support Documents
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Regulatory Determination 1 Health Effects Support Document for Acanthamoeba
Acanthamoeba Health Effects Support Document
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SO2 Designations - Round 4 State Recommendations and EPA Responses
Sulfur Dioxide Designations - State Recommendations Round 1
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Subpart T: National Emission Standards for Radon Emissions From the Disposal of Uranium Mill Tailings
Subpart T limits radon-222 emissions from uranium mill tailings piles that are no longer operational at Department of Energy (DOE) facilities. Subpart T does not apply to NRC licensees.
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Benefits of Addressing HFCs under the Montreal Protocol
A phasedown of HFCs under the Montreal Protocol is the best way to reduce the rapidly growing climate effect of these gases.
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Servicing Information for Technicians
Provides links to information for technicians about servicing motor vehicle air conditioners.
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Rescission of Memorandum Entitled: “Policy for the EPA's Review and Action on Clean Water Act Program Submittals”
On February 4, 2022, the EPA Assistant Administrator for Water sent a memorandum to the Agency’s regional offices rescinding a June 3, 2019 memorandum regarding review of certain Clean Water Act submissions.