Learn the Issues
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Case Study on Taiwan's E-waste Management System
A Taiwan case study on recycling and waste electrical and electronic equipment management.
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114th Congress 2nd Session
This page will hold testimony statements for the 2nd session of the 114th Congress(2016)
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Distributed Generation of Electricity and its Environmental Impacts
Distributed generation refers to technologies that generate electricity at or near where it will be used. Learn about how distributed energy generation can support the delivery of clean, reliable power to additional customers.
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International Transport of Air Pollution
Draft Guidance on the Preparation of Clean Air Act Section 179B Demonstrations for Nonattainment Areas Affected by International Transport of Emissions
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Power Sector Programs
Learn more about Clear Air Markets Programs, including current programs, retired programs, related EPA programs, EPA tools and resources, and international efforts.
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CSAPR Compliance Year 2022 NUSA NODAs
This page contains links to NUSA Notices of Data Availability for the CSAPR 2022 compliance year.
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EPA Marks Cleanup Success at the Rowe Industries Groundwater Contamination Superfund Site
U.S. Environmental Protection Agency (EPA) is proposing to delete the Rowe Industries Groundwater Contamination Superfund site in Sag Harbor, New York, from the National Priorities List.
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2025 SO2 Allowance Auction
Find on this page the results of EPA's 2024 Acid Rain Program sulfur dioxide (SO2) allowance auction, which took place on March 26, 2024.
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La EPA elimina el Lugar Superfondo del Pozo Corozal de la Lista Nacional de Prioridades
En un paso que ilustra otro éxito del programa Superfondo, la Agencia de Protección Ambiental de EE. UU. (EPA, por sus siglas en inglés) está eliminando el lugar Superfondo del Pozo Corozal, situado en el municipio de Corozal, Puerto Rico, de la NPL.
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Manitowoc Company Clean Air Act Settlement Summary
Manitowoc Company Clean Air Act Settlement Summary
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Air Emissions Factors Development and Use
This page includes basic information about air emissions factors and tools supporting the emission factor development process.
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EPA Deletes Corozal Well Superfund Site from National Priorities List
In a step that illustrates another Superfund success, U.S. Environmental Protection Agency (EPA) is deleting the Corozal Well Superfund site, located in the central mountain town of Corozal, Puerto Rico, from the National Priorities List (NPL).
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September—October 2019 Pacific Southwest Newsletter
Protecting Children, Restoring SF Bay, Revitalizing a City, and More!
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Oil and Gas Safety Alert: Public Safety at Oil and Gas Upstream Facilities
Safety alert on public safety at oil and gas upstream facilities.
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Do states require extra Tier II information?
Do states require additional information on the Tier II report? How can I find out about the state data requirements? Some states do want additional Tier II information; contact your state Tier II administrator to learn specific details. Tier2 Submit includes fields for the additional information requested or required by…
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Tier2 Submit validation error due to incorrect CAS number
What do I do if I get a validation error in Tier2 Submit due to an incorrect Chemical Abstracts Service (CAS) number? Your CAS number should be typed exactly as it appears on the substance's SDS. Review your safety data sheet (SDS) to see if the CAS number was typed…
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Attaching Site Plan Using Tier2 Submit
Tier2 Submit does allow a user to attach and submit a site plan with the Tier II inventory information. However, before using Tier2 Submit to submit a site plan, the facility should check with the relevant State or Tribal Emergency Response Commission ( SERC or TERC) and/or their state or…
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Entering Alternative Storage Types and Pressure and Temperature Conditions on Tier II Form
EPA provides a list of storage types and conditions for pressure and temperature in the instructions for the paper Tier II form and as dropdown menus in Tier2 Submit. Are facilities required to use the storage types and conditions that EPA provides, or can facilities provide different values? Facilities are…
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Are hazardous chemicals present at rail yards subject to EPCRA 311/312?
Yes, hazardous chemicals present at rail yards are subject to EPCRA Sections 311 and 312, if they are not stored incident to transportation and they are present at the rail yard in amounts equal to or in excess of the minimum thresholds in 40 CFR 370.10(a). As explained in the…
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How did states form their SERCs?
How are States expected to form their State Emergency Response Commission (SERC) as required under Title III? States are required to establish a State Emergency Response Commission (SERC) under Title III. The SERC may consist of existing emergency response organizations or may be an entirely new mechanism to address this…