Laws & Regulations
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NPDES Permit for City of St. Maries Wastewater Treatment Plant in Idaho
EPA's NPDES wastewater permit for the City of St. Maries, Idaho.
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NPDES Permit for Riverside Water and Sewer District in Idaho
EPA's NPDES wastewater permit for the Riverside Water and Sewer District wastewater treatment facility on the Nez Perce Reservation of the Nez Perce Tribe of Indians in Idaho.
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NPDES Permit for City of Plummer Wastewater Treatment Plant in Idaho
EPA's NPDES wastewater permit for City of Plummer Wastewater Treatment Plant in Idaho.
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NPDES Permit for the City of Kooskia Wastewater Treatment Plant in Idaho
EPA's NPDES wastewater permit for the City of Kooskia in Idaho.
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NPDES Permit for the Lapwai Regional Wastewater Treatment Plant in Idaho
EPA's NPDES wastewater permit for the Lapwai Regional Wastewater Treatment Plant in Idaho.
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Lists of EPA-Compliant Alternative Fuel Conversion Systems
The conversion systems on these lists have been certified by EPA as meeting applicable emission standards and are exempt from the Clean Air Act tampering prohibition.
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Pesticide Establishment Registration and Reporting Contacts
Contacts for pesticide establishment registration and reporting
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Sulfur Dioxide (SO2) Standards - Risk and Exposure Assessments from Current Review
Review of the National Ambient Air Quality Standards for Oxides of Nitrogen, Proposed Decision
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Responses to Additional Significant Comments on the 2020 Proposed Action on the Ozone National Ambient Air Quality Standards
This document, together with the final decision notice on the review of the ozone national ambient air quality standards, present the responses of the EPA to significant public comments received on the 2020 proposed decision.
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Sulfur Dioxide (SO2) Primary Air Quality Standards - Other Technical Documents from the Review Completed in 2019
A variety of other technical documents or memoranda may be developed in each review. These may relate to aspects of the risk and exposure assessments, the monitoring network or air quality analyses.
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Tech Tips for Drinking Water Systems in Wyoming and on Tribal Lands in EPA Region 8
Tech Tips intended to assist owners and operators of public water systems in Wyoming and on Tribal Lands in EPA R8 (CO, MT, ND, SW, UT and WY) with the operation and maintenance of their systems.
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Implementation of Quality Assurance Requirements for Organizations Receiving EPA Financial Assistance
EPA assistance agreement recipients must implement or have implemented a quality system conforming to the American National Standard ASQ/ANSI E4:2014
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Draft Permit for Oakland Hydro Station, Oakland, ME, ME0001163
A public notice of a draft MEPDES permit for Oakland Hydro Station, Oakland, ME, ME0001163.
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Draft Permit for Rice Rips Hydro Station, Oakland, ME, ME0001252
A public notice of a draft MEPDES permit for Rice Rips Hydro Station, Oakland, ME, ME0001252.
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Draft Permit for Ledgemere Hydro Project, Limerick, ME, ME0036579
A public notice of a draft MEPDES permit for Ledgemere Hydro Project, Limerick, ME, ME0036579.
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New Mexico SIP: Bernalillo County Part 65: Volatile Organic Compounds
New Mexico SIP: Bernalillo County Part 65
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New Mexico SIP: Bernalillo County Part 8: Ambient Air Quality Standards
New Mexico SIP: Bernalillo County Part 8
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New Mexico SIP: Part 79. Permits - Nonattainment Areas; SIP effective 1997-11-25 (NMc66) and 2002-04-09 (NMd09) to 2007-10-04
New Mexico SIP: Part 79. Permits - Nonattainment Areas; SIP effective 1997-11-25 (NMc66) and 2002-04-09 (NMd09) to 2007-10-04
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FY 2026 U.S. Chemical Safety and Hazard Investigation Board Management Challenges
At a Glance, December 6, 2026. The OIG is required by statute to prepare an annual report summarizing what the OIG considers the “most serious management and performance challenges facing the agency.”