Learn the Issues
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R9UIC-CA1-FY20-3R: Union Sugar No. 13, Santa Maria, CA
Documents relating to UIC Permit #CA10910004 - Union Sugar No. 13, Santa Maria, California
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R9UIC-HI5-FY16-1R: Puna Geothermal Venture, Pahoa, Hawaii
Class V Geothermal Injection Permit No. R9UIC-HI5-FY16-1R provides authorization to operate four Class V geothermal injection wells known as Kapoho State 1A, 3, 11 and 13 for Puna Geothermal Venture, 14-3860 Kapoho-Pahoa Road, Pahoa, Hawaii 96778.
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Florence Copper Project, Florence, AZ
Arizona received UIC Primacy on October 15, 2025. EPA transferred all AZ UIC inventory (except for inventory on Indian lands) and permits to ADEQ.
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Avoid Counterfeit Pesticide Products for Dogs and Cats
EPA is aware of counterfeit pet pesticides designed to look like legitimately registered pesticide products. The information on this page is intended to help consumers avoid unregistered pet products.
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EPA Taking Public Comment on Draft Policy to Strengthen Scientific Integrity
EPA released draft updates to its Scientific Integrity policy for public comment. The updates would include adopting a new Federal definition of scientific integrity and improving the culture of scientific integrity at the Agency.
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Global Emissions of Substitutes for Ozone Depleting Substances
The emissions of hydrofluorocarbons (HFCs) and perfluorocarbons (PFCs), which are used as substitutes for ozone-depleting substances (ODS), are rising worldwide.
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Safer Choice Webinar Archive
Presentation that highlights the science behind the Safer Choice program, how EPA works with product and chemical manufacturers, as well as Safer Choice label messaging.
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Questions and Answers About R-22a Safety
This page includes questions and answers about R-22a.
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CWA-309(a)-22-002: Imperial Irrigation District, Imperial, CA; Administrative Order on Consent
Administrative Order on Consent in the Matter of Imperial Irrigation District, Imperial, California. EPA Docket Number CWA-309(a)-22-002.
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OPA-09-2017-0004: The SoCo Group Inc., Carlsbad, CA
Clean Water Act Section 311 Class II Consent Agreement and Final Order in the matter of The SoCo Group Inc, 5962 Priestly Drive, Carlsbad, CA 92008. Docket No. OPA-09-2017-0004.
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Air Standards Delegations in EPA’s Pacific Southwest (Region 9)
Federal air regulations that have been delegated to state or local air pollution control agencies in Region 9
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Central Metal Site Investigation: Frequently Asked Questions (FAQs)
Frequently asked questions about the Central Metal Site Investigation, Huntington Park, CA.
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Radionuclide Basics: Cobalt-60
Cobalt (chemical symbol Co) is a hard, gray-blue metal that is solid under normal conditions. The most common radioactive isotope of cobalt is cobalt-60 (Co-60).
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Climate Change Science
EPA tracks the science on the causes of climate change, observations of climate changes today, and the ways climate change could affect societies and ecosystems in the future.
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California Air Resources Board rejects VW 2-liter diesel recall plan and issues Notice of Violation
California Air Resources Board rejects VW 2-liter diesel recall plan and issues Notice of Violation (January 12, 2016)
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Landscape Photo Gallery
Water-smart landscapes can be beautiful and water-efficient. Check out landscapes from across the country for design inspiration.
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Vehicles on the Road (Text Only)
Learn about different types of vehicles on the road.
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Webinar: On the Road to Sustainable Freight: Where do Electric Trucks Fit In?
This EPA presentation provides information on the SmartWay Shipper Carrier Tool: its background and development, participation in the program, application process, emission metrics, tool demonstration, data collection, and schedule for 2020.
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Webinar: Everything you want to know about the Partner Portal - So much more for you than the tool alone!
This EPA presentation provides information on the SmartWay Shipper Carrier Tool: its background and development, participation in the program, application process, emission metrics, tool demonstration, data collection, and schedule for 2020.
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Equipment Manufacturers, Importers, and Exporters: Frequent Questions
As the US continues to phase out HCFCs, equipment manufacturers, importers, and exporters will need to adapt to the changing market demand for equipment. This page provides these groups with information on their responsibilities under the regulations.