Laws & Regulations
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NEPA Comments: Suisun Marsh Habitat, Management, Preservation & Restoration Plan
EPA correspondence with state and federal agencies related to the Suisun Marsh Habitat, Management, Preservation & Restoration Plan.
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NEPA Comments: Sites Reservoir Project
EPA correspondence with state and federal agencies related to the Sites Reservoir Project.
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NEPA Comments: Upper San Joaquin River Basin Storage
EPA correspondence with state and federal agencies related to the Upper San Joaquin River Basin Storage Investigation, Central Valley Project, CA.
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NEPA Comments: South Delta Improvements Program
EPA correspondence with state and federal agencies related to the South Delta Improvements Program.
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Criminal Enforcement: Signs of Environmental Violations
Signs of potential environmental violations and what you should look for.
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NEPA Comments: San Francisco Bay to Stockton Navigation Improvement Project
EPA correspondence with state and federal agencies related to the San Francisco Bay to Stockton Navigation Improvement Project.
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NEPA Comments: Shasta Lake Water Resources Investigation
EPA correspondence with state and federal agencies related to the Shasta Lake Water Resources Investigation.
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NEPA Comments: Yolo Bypass Salmonid Habitat Restoration and Fish Passage Project
EPA correspondence with state and federal agencies related to the Yolo Bypass Salmonid Habitat Restoration and Fish Passage Project.
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Current New Mexico State-Wide SIP Approved Regulations
Current EPA Approved New Mexico Regulations
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Current Albuquerque/Bernalillo County SIP Approved Regulations
Current EPA Approved New Mexico Regulations
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NEPA Comments: Don Pedro Hydroelectric Project
EPA correspondence with state and federal agencies related to the Don Pedro Hydroelectric Project.
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Tribal NSR Rules Implementation Manual
registration form for existing sources, federal minor new source review program in indian country
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Tribal NSR Training Database
EPA finalized options to simplify the Clean Air Act permitting process for certain smaller sources of air pollution commonly found in Indian country
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Direct Final Fine Particle Pollution De Minimis Emission Threshold Rates for General Conformity Applicability
On this page EPA publishes interim policy for General Conformity Applicability in PM2.5 nonattainment areas
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Coal Combustion Residuals Part B Implementation
Facilities have until November 30, 2020 to submit applications to EPA for approval. EPA is updating this webpage with the current status of the demonstrations received in the table below.
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Heavy-Duty Diesel Fuel Analysis
EPA's heavy-duty diesel fuel analysis program sought to quantify the hydrocarbon, NOx, and PM emission effects of diesel fuel parameters (such as cetane number, aromatics content, and fuel density) on various nonroad and highway heavy-duty diesel engines.
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Compliance Help Tools for Fuels Program
Compliance help tools for registration and reporting that is required for Fuel Programs.
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Section 609 Technician Training and Certification Programs
EPA-approved programs for technicians who service motor vehicle air conditioning (MVAC) systems. Any person who repairs or services a MVAC system for consideration must be certified under section 609 of the Clean Air Act by an EPA-approved program.
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Phaseout of Class I Ozone-Depleting Substances
Definition of Class I ozone-depleting substances and a table of their phaseout schedule
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Technical Support for Fuel Programs
Provides support lines and help-desks associated with EPA Fuel Programs.