Laws & Regulations
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Proposed Volumes for 2020 and Biomass-Based Diesel Volume for 2021: Supplemental Notice
Proposed Volumes for 2020 and Biomass-Based Diesel Volume for 2021: Supplemental Notice
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Modeling and Calculator Tools for State and Local Transportation Resources
Air quality models, calculators, guidance and strategies are offered for estimating and projecting vehicle air pollution, including ozone or smog-forming pollutants, particulate matter and other emissions that pose public health and air quality concerns.
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Locomotives and Locomotive Engines; Preemption of State and Local Regulations– Final Rulemaking
EPA finalizes addressing preemption of state regulation of new locomotives and new engines used in locomotives.
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Engines and Vehicles Compliance Information System (EV-CIS) Documentation for Cross-Industry Services
These files apply across industry sectors in EV-CIS.
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Administrative Records for Abandoned Mines and other Superfund Cleanups on Navajo Nation
Links to Administrative Records files and related information for cleanup actions at Abandoned Uranium Mines in Navajo Nation.
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Underground Injection Control Regulations
The page summarizes the UIC Regulations.
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USTs in Region 10 Indian Country: Is your facility ready?
Information for owners of underground storage tanks on tribal lands in Alaska, Idaho, Oregon, and Washington (EPA's Region 10).
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Final Report on Review of Agency Actions that Potentially Burden the Safe, Efficient Development of Domestic Energy Resources Under Executive Order 13783
Assessment of review of Agency Actions related to domestic energy production.
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McClarin Plastics, LLC Wapato, Washington Custom Fiberglass-Reinforced Plastics Facility Non-Title V Air Quality Operating Permit
Final non-Title V air permit issued to McClarin Plastic, LLC
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Impaired Waters and TMDLs in Region 10
A collection of resources for the EPA Region 10 Total Maximum Daily Load (TMDL) program.
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Water Quality Trading Toolkit for Permit Writers
The Water Quality Trading Toolkit for Permit Writers is EPA’s first “how-to” manual on designing and implementing water quality trading programs. It helps NPDES permitting authorities incorporate trading provisions into permits.
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Petroleum Refining Effluent Guidelines Studies and Guidance
Studies about wastewater discharges from the petroleum refining industry; guidance documents about existing regulations for refineries
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Superfund Five-Year Review Annual Report to Congress
EPA is responsible for reviewing Superfund remedial actions at least every 5 years where hazardous substances will remain on site above levels that allow for unlimited use and unrestricted exposure. Access the annual reports presented to Congress.
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Action on Clean Air Act Section 126 Petitions from Delaware and Maryland
proposed action on Clean Air Act Section 126 Petitions from Delaware and Maryland, Ozone pollution
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Delaware 126 Petition (August 8 2016)
This page contains the fact sheet and notice for an extension of the deadline to respond to a section 126 petition.
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Delaware and Maryland 126 Petitions (November 2016)
This page contains the fact sheets for four separate regulations dealing with the nonattainment actions of the 2008 ozone national ambient air quality standards (NAAQS).
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Delaware Section 126 Petition (November 28, 2016 )
On January 9, 2017, Environmental Protection Agency (EPA) extended by six months the deadline to respond to a petition submitted by the state of Delaware under section 126 of the Clean Air Act.
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2008 Ozone National Ambient Air Quality Standards (NAAQS) Section 176A Petitions
Response to December 9, 2013, Clean Air Act Section 176A Petition From Connecticut, Delaware, Maryland, Massachusetts, New Hampshire, New York, Pennsylvania, Rhode Island and Vermont
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Guidance: Protocol for Conducting Environmental Compliance, Audits of Treatment, Storage and Disposal Facilities under the Resource Conservation and Recovery Act (RCRA)
Protocol for Conducting Environmental Compliance, Audits of Treatment, Storage and Disposal Facilities under the Resource Conservation and Recovery Act