Learn the Issues
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The Clean Air Act: Solving Air Pollution Problems with Science and Technology
The Act calls for states and EPA to solve multiple air pollution problems through programs based on the latest science and technology information.
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EMC Proposed Test Methods
EMC Approved Alternative Test Methods
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PRP Search Training Videos
Web page with links to training videos for conducting PRP searches.
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NEJAC Membership
Information about NEJAC membership and the nomination process.
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What is GLWQA?
History and general summary of GLWQA.
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AgSTAR Stories from the Farm
The stories highlight operations, lessons learned and case studies of farm-based anaerobic digesters throughout the United States.
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10 Keys to Digester Success
Describes 10 key activities to ensure that a farm-based digester project is successful
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Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990-2017
View or download the Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990-2017, including individual chapters and annexes.
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Slide Presentations: March 2018 Stakeholder Webinar on the Public Review Draft of the 1990-2016 GHG Inventory
EPA Inventory of US Greenhouse Gas Emissions and Sinks - Updates Under Consideration for Natural Gas and Petroleum in the 1990-2016 Inventory
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Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990-2018
View or download the Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990-2018, including individual chapters and annexes.
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National Vehicle and Fuel Emissions Laboratory (NVFEL) Vehicle Technology Showcase 2014
National Vehicle and Fuel Emissions Laboratory Vehicle Technology Showcase 2014's meeting information including the agenda is here.
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National Vehicle and Fuel Emissions Laboratory (NVFEL) Vehicle Technology Showcase
National Vehicle and Fuel Emissions Laboratory Vehicle Technology Showcase 2015 meeting information including the agenda is here.
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Marine, Nonroad and Onroad Regulations Related to Ports
Regulations for marine, nonroad and onroad that are related to ports activities.
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Announcements for FCA Violations
Announcements about EPA's issued notice of violation (NOV) of the Clean Air Act (CAA) to FCA. The NOV alleges software that circumvents EPA emissions standards for certain air pollutants.
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Light- and Medium-Duty Proposed Standards for Model Years 2027 and Later
EPA proposes to set new, more ambitious emissions standards for light- and medium-duty vehicles for model year (MY) 2027 and later.
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Heavy-duty Greenhouse Gas “Phase 3” for Model Years 2027 and Later - Notice of Proposed Rulemaking
EPA proposes to set new, more ambitious emissions standards for heavy-duty vehicles for model year (MY) 2027 and later.
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Manufacturer Tier 3 Questions and EPA Answers
This document contains a record of EPA responses to manufacturer questions received prior to October 16, 2015 with respect to implementation of the Tier 3 final rule intended to aid regulated parties in achieving compliance with regulations for light-duty
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Selection and Oversight of Demolition Contractors and Consultants
Learn about important factors in selecting contractors and consultants, how to ensure proper oversight of them, and find relevant publications.
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Basic Information on Fuel Economy Labeling
Basic fuel economy information about the fuel economy labels (window stickers) that appear on cars and light trucks.
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Home Maintenance
WaterSense labeled homes allow families to enjoy all the comforts of home while using less water and energy and spending less money on utility bills.