Laws & Regulations
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Criminal Investigations
Describes EPA criminal investigations and the actions of special agents. Includes examples of environmental concerns and investigations.
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Water Quality Standards Regulations: Makah Indian Tribe
Information related to Water Quality Standards for Makah Indian Nation.
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Update and Public Comments for October 9 and 10, 2013, NDWAC Meeting
Comments on October 9 and 10, 2013 drinking water regulations for lead and copper meeting.
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Public Comments for November 6 & 7, 2014 NDWAC Meeting
Comments related to a public meeting on drinking water regulations.
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Stone Quarrying, Crushing and Screening Facilities General Air Quality Permit Request for Coverage: Interstate Concrete & Asphalt - Pendleton Mission Quarry
EPA's approval of coverage under the SQCS general air permit for Interstate Concrete & Asphalt, Umatilla Indian Reservation, Oregon.
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Priorities for Water Quality Criteria and Standards Programs FY 2017-2018
This document recommends priorities for states and authorized tribes as they plan WQS actions and updates in the upcoming two fiscal years. The document addresses new regulatory requirements in 40 CFR part 131 issued in August 2015.
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Water Quality Standards Regulations: Yerington Paiute Tribe
Information related to Water Quality Standards for the Yerington Paiute Tribe.
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Water Quality Standards Regulations: Navajo Nation
Information related to Water Quality Standards for Navajo Nation.
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Options for Modernizing Public Hearings for Water Quality Standard Decisions Consistent with 40 CFR 25.5
Provides suggestions for states and WQS-authorized tribes on how they could modernize – that is, incorporate technologies into – their Water Quality Standards (WQS) public hearing process consistent with federal public hearing requirements at 40 CFR 25.5.
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Water Quality Standards: Establishment of Numeric Criteria for Priority Toxic Pollutants for the State of California (California Toxics Rule)
On May 18, 2000, the EPA promulgated numeric water quality criteria for priority toxic pollutants and other provisions for water quality standards to be applied to waters in the state of California.
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Tribal Consultation and Coordination on EPA’s Proposed Federal Baseline Water Quality Standards for Indian Reservations
On April 27, 2023, the EPA Administrator signed a proposed rule to promulgate federal baseline water quality standards (WQS) for waters on over 250 Indian reservations that do not have WQS in effect under the Clean Water Act (CWA).
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Petitions to the Office of Air and Radiation
Lists of petitions for rulemaking received by EPA's Office of Air and Radiation
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FACT SHEET: Overview of Final Updates to Air Emissions Requirements for New Residential Wood Heaters
Overview fact sheet explaining emission requirements and standards of performance for residential wood heaters
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Technical Information for Residential Wood Heater New Source Performance Standards
Technical documents related to New Source Performance Standards for Residential Wood Heaters
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Compliance Requirements for 1988 NSPS for Residential Wood Heaters
Compliance documents and test methods related to the 1988 Residential Wood Heater New Source Performance Standards (NSPS)
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FACT SHEET: Final Updates to Air Emissions Requirements for New Residential Wood Heaters: Changes Since Proposal
Fact sheet explaining the differences between the final NSPS for residential wood heaters and proposal
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Memo: Correction of Inadvertent Errors in the Standards of Performance
A memo outlining errors to the NSPS for residential wood heaters issued on Feb. 4, 2015
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Fact Sheet: Residential Wood Heaters: New Source Performance Standards
The U.S. Environmental Protection Agency (EPA) is finalizing amendments to the 2015 New Source Performance Standards for New Residential Wood Heaters, New Hydronic Heaters and Forced-Air Furnaces
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FACT SHEET: Summary of Requirements for Wood-fired Forced Air Furnaces
Fact sheet summarizing requirements for wood-burning forced-air furnaces under the NSPS for residential wood heaters
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FACT SHEET: Summary of Requirements for Wood-fired Hydronic Heaters
Fact sheet summarizing requirements for wood-fired hydronic heaters under the NSPS for new residential wood heaters