Laws & Regulations
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EMC Promulgated Test Methods
EMC Reference Methods
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Method 9 - Visual Opacity
CFR Promulgated Test Method 9 Visual determination of the opacity of emissions from stationary sources.
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Petitions to the Office of Water
List of petitions for rulemaking received by EPA's Office of Water on or after January 1, 2013.
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Notification: FY26 CSB FISMA audit
Notification: Audit of the Drinking Water State Revolving Fund Infrastructure Investment and Jobs Act Funds for Lead Service Line Replacement Awarded to the New Jersey Department of Environmental Protection
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How soon must a local education agency (LEA) inspect a school leased or acquired after October 12, 1988 that is to be used as a school building?
An LEA must inspect such a building anytime prior to its use as a school building. In the event that emergency use of an uninspected school building is necessitated such buildings shall be inspected 30 days after commencement of such use. (40 CFR part 763.85(a)(2)) Other Frequent Questions about Asbestos…
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PSD Permit: Williams Field Services - Ignacio Gas Plant
Final PSD permit and related documents for the Williams Field Services Ignacio Gas Plant, located on the Southern Ute Indian Reservation, in La Plata County, Colorado.
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North Dakota Operating Permit Program Approval History
Montana Operating Permit Program Approval History
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Summary of the Congressional Review Act
The Congressional Review Act requires the agency to submit a report to both Houses of Congress and the Comptroller General before a rule that is considered "major" (having significant economic or other impacts) can take effect.
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Method 5 - Particulate Matter (PM)
CFR Promulgated Test Method 5 Particulate Matter (PM).
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Summary of the Toxic Substances Control Act
The Toxic Substances Control Act (TSCA) requires reporting, record-keeping and testing requirements, and restrictions relating to chemical substances and/or mixtures.
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Summary of the National Technology Transfer and Advancement Act
Provides a summary of the National Technology Transfer and Advancement Act which pomote economic, environmental, and social well-being by bringing technology and industrial innovation to the marketplace
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Montana Operating Permit Program Approval History
Montana Operating Permit Program Approval History
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PSD Permit: Devon Energy - Riverton Dome Gas Plant
Final PSD permit and Statement of Basis for the Devon Energy (formerly Snyder Oil Corporation) Riverton Dome Gas Plant, located on the Wind River Indian Reservation, in Fremont County, Wyoming.
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GHG PSD Permit: Cheyenne Light, Fuel & Power / Black Hills Power, Inc. – Cheyenne Prairie Generating Station
This page contains the final PSD permit for the Cheyenne Light, Fuel & Power / Black Hills Power, Inc. Cheyenne Prairie Generating Station, located in Laramie, Wyoming, and operated by Black Hills Service Company.
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GHG PSD Permit: Solvay Soda Ash Joint Venture - Green River Soda Ash Plant
This page contains the final PSD permit for the Solvay Soda Ash Joint Venture Green River Soda Ash Plant located in Green River, Wyoming.
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GHG PSD Permit: Sinclair Wyoming Refining Company
This pages contains documents for the Greenhouse Gas Prevention of Significant Deterioration Permit for the Sinclair Wyoming Refining Company, Sinclair Refinery, Permit Number: PSD-WY-000002-2011.001
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Draft Title V Permit to Operate: Deseret Power Electric Cooperative Bonanza Power Plant
Draft operating permit, Statement of Basis, public notice, and supporting documentation for the Deseret Power Electric Cooperative Bonanza Power Plant located within the exterior boundaries of the Uintah and Ouray Indian Reservation in Uintah County, UT.
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Synthetic Minor NSR Permit: BioUrja New Town Terminal, LLC - New Town Transfer Facility
This page contains the revised synthetic minor NSR permit for the BioUrja New Town Terminal, LLC, New Town Transfer Facility, located on the Fort Berthold Indian Reservation in Mountrail County, ND.
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Synthetic Minor NSR Permit: Arrow Pipeline, LLC - Stations 1-6
Synthetic minor NSR permit application, air quality modeling files and other supporting documentation for the proposed revision to the synthetic minor NSR permit for Arrow Pipeline, LLC - Stations 1-6, on Fort Berthold Indian Reservation.
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Summary of the Regulatory Flexibility Act, as amended by the Small Business Regulatory Enforcement Fairness Act
The Regulatory Flexibility Act (RFA), as amended by the Small Business Regulatory Enforcement Fairness Act (SBREFA), requires agencies to determine a rule's economic impact on small entities.