Laws & Regulations
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Proposed Rule and Related Materials for Revised Carbon Monoxide (CO) Standard for Class I and II Nonhandheld New Nonroad Phase 1 Small Spark-Ignition Engines
Information for the proposed rule and related materials for Revised Carbon Monoxide (CO) Standard for Class I and II Nonhandheld New Nonroad Phase 1 Small Spark-Ignition Engines.
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Proposed Rule and Related Materials for Control of Emissions of Air Pollution From Nonroad Diesel Engines Control of Air Pollution From Aircraft and Aircraft Engines; Proposed Emission Standards and Test Procedures
EPA is proposing to adopt emission standards and related provisions for aircraft gas turbine engines with rated thrusts greater than 26.7 kilonewtons. These engines are used primarily on commercial passenger and freight aircraft.
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Final Rulemaking for Grain Sorghum Oil Pathways
Learn more about final rulemaking for grain sorghum oil pathways.
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Notice of Proposed Rulemaking for Grain Sorghum Oil Pathways
Periodic Reviews of the Renewable Fuel Standard Program
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Volkswagen Light Duty Diesel Vehicle Violations for Model Years 2009-2016
This site provides information on EPA's issued notice of violation (NOV) of the Clean Air Act (CAA) to Volkswagen. The NOV alleges software that circumvents EPA emissions standards for certain air pollutants.
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Gasoline Standards
Information about EPA's gasoline regulations, including the Tier 3 Gasoline Sulfur program, the Mobile Source Air Toxics rule, Reformulated Gasoline (RFG) regulations, and volatility requirements.
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EPA Comments on the Gasoline Additive MMT
EPA Comments on the Gasoline Additive Methylcyclopentadienyl manganese tricarbonyl (MMT)
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NPDES Permit for Maher Cattle Company in South Dakota
Under NPDES permit SD-0034606, the Wulf Cattle Depot is authorized to discharge and must operate their facility in accordance with effluent limitations, monitoring requirements, and other provisions set forth herein.
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HPI Products Inc. Facilities, St. Joseph, Buchanan County, Missouri – Fact Sheet, June 2022
Public Comment Period - Request for Community Concerns
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All Appropriate Inquiries: Reporting Requirements Checklist for Assessment and Multipurpose Grant Recipients
This page contains the document, "Fact Sheet: All Appropriate Inquiries: Reporting Requirements Checklist for Assessment and Multipurpose Grant Recipients."
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Final NPDES Permit for Vega Baja Wastewater Treatment Plant in Vega Baja, Puerto Rico
EPA's NPDES wastewater permit for the Vega Baja Wastewater Treatment Plant in Puerto Rico.
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Final NPDES Permit for Betances (Boquerón) Water Treatment Plant in Cabo Rojo, Puerto Rico
EPA's NPDES wastewater permit for the Coamo Water Treatment Plant in Puerto Rico.
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Final NPDES Permit for San German Wastewater Treatment Plant in San German, Puerto Rico
EPA's NPDES wastewater permit for the San Germán Wastewater Treatment Plant in Puerto Rico.
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Final NPDES Permit for Maunabo Wastewater Treatment Plant in Maunabo, Puerto Rico
EPA's NPDES wastewater permit for the Maunabo Wastewater Treatment Plant in Puerto Rico.
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Final NPDES Permit for Aguas Buenas Water Treatment Plant in Aguas Buenas, Puerto Rico
EPA's NPDES wastewater permit for the Aguas Buenas Water Treatment Plant in Puerto Rico.
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Final NPDES Permit for Corozal Water Treatment Plant in Corozal, Puerto Rico
EPA's NPDES wastewater permit for the Corozal Treatment Plant in Puerto Rico.
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Final NPDES Permit for Isabela Water Treatment Plant in Isabela, Puerto Rico
EPA's NPDES wastewater permit for the Isabela Treatment Plant in Puerto Rico.
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Fee Evaluation and Oversight Guidance for 40 CFR Part 70
This document is part of the Title V Policy and Guidance Database.
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2016 Order Responding to 2013 Petitions to Object to Appleton Operating Permit
This document is part of the Title V Petition Database.
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Final NPDES Permit for Malpaso Water Treatment Plant in Peñuelas, Puerto Rico
EPA's NPDES wastewater permit for the Mal Paso Treatment Plant in Puerto Rico.