Science & Technology
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Vehicles and Engines
On this page you will find links to information about nonroad engines and highway vehicles.
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Aerodynamic Devices
This page provides links to information for manufacturers and partners for aerodynamic devices.
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Emissions-Related Recalls of Light-Duty Cars and Trucks
This page provides a tool for vehicle to search for emissions-related recalls.
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Dynamometer Drive Schedules
This page provides the chassis dynamometer driving schedules and shift schedules used by EPA for vehicle emissions and fuel economy testing.
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Combining Data into Complete eMotor ALPHA Maps
The National Center for Advanced Technology (NCAT), part of the National Vehicle and Fuel Emissions Laboratory (NVFEL), assesses the effectiveness of advanced low emission and low fuel consumption technologies for a broad range of electric motors (eMotor).
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Open Data Plan
EPA's Open Data Plan describes how EPA makes available and shares data as required by the OPEN Government Data Act.
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Submitting Beach Data to EPA
Information on Submitting Data to BEACON
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Technology Advancement Funding Opportunities
California Clean Air Technology Initiative Technology Advancement Funding: Introduction to funding opportunities with Federal and State Agencies.
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Responses to 40 CFR Part 75 Petitions - 2024
Petition responses in 2024
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Responses to 40 CFR Part 75 Petitions - 2022
Petition responses in 2022
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Responses to 40 CFR Part 75 Petitions - 2023
Petition responses in 2023
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Responses to 40 CFR Part 75 Petitions - 2020
Approval for an alternative data substitution methodology.
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Responses to 40 CFR Part 75 Petitions - 2019
Approval for an alternative data substitution methodology.
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Responses to 40 CFR Part 75 Petitions - 2018
Approval for an alternative data substitution methodology.
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Responses to 40 CFR Part 75 Petitions - 2016
EPA's responses (in chronological order) to submitted Part 75 petitions in 2016.
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Responses to 40 CFR Part 75 Petitions - 2014
Find responses to petitions submitted by affected units subject to 40 CFR Part 75 in 2014.
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Responses to 40 CFR Part 75 Petitions - 2013
Find responses to petitions submitted by affected units subject to 40 CFR Part 75 in 2013.
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Responses to 40 CFR Part 75 Petitions - 2006
Find responses to petitions submitted by affected units subject to 40 CFR Part 75 in 2006.
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Power Sector Data Crosswalk
A crosswalk matching EPA/CAPD data on combustion units to EIA's data on generators.
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Friction Materials Manufacturing Facilities Residual Risk and Technology Review
proposed amendments to the National Emission Standards for Hazardous Air Pollutants (NESHAP) for Friction Materials Manufacturing Facilities to address the results of the residual risk and technology review