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EPA/OAR | RIN: 2060-AU41 | Publication ID: Spring 2021 |
Title: Highway Heavy-Duty Emissions Standards | |
Abstract:
Heavy-duty engines have been subject to emission standards for criteria pollutants, including particulate matter (PM), hydrocarbon (HC), carbon monoxide (CO), and oxides of nitrogen (NOx), for nearly half a century; however, current data suggest that the existing standards do not ensure full, in-use emission control. In particular, in-use engine NOx emission levels from heavy-duty vehicles can be significantly higher than their certified values under certain conditions. NOx emissions are major precursors of ozone and significant contributors to secondary PM2.5 formation. Ozone and ambient PM2.5 concentrations continue to be a nationwide health and air quality issue. Reducing NOx emissions from on-highway, heavy-duty trucks and buses is an important component of improving air quality nationwide and reducing public health and welfare effects associated with these pollutants, especially for vulnerable populations and in highly impacted regions. This action will evaluate data on current NOx emissions from heavy-duty vehicles and engines, and options available to improve control of criteria pollutant emissions through revised emissions standards. Additionally, this action will evaluate ways to streamline existing requirements. |
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Agency: Environmental Protection Agency(EPA) | Priority: Economically Significant |
RIN Status: Previously published in the Unified Agenda | Agenda Stage of Rulemaking: Long-Term Actions |
Major: Yes | Unfunded Mandates: Undetermined |
CFR Citation: 40 CFR 80 | |
Legal Authority: 42 U.S.C. 7401 et seq. Clean Air Act |
Legal Deadline:
None |
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Timetable:
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Regulatory Flexibility Analysis Required: Undetermined | Government Levels Affected: Undetermined |
Federalism: Undetermined | |
Included in the Regulatory Plan: No | |
International Impacts: This regulatory action will be likely to have international trade and investment effects, or otherwise be of international interest. | |
Sectors Affected: 11 Agriculture, Forestry, Fishing and Hunting; 211112 Natural Gas Liquid Extraction; 324110 Petroleum Refineries; 325110 Petrochemical Manufacturing; 325193 Ethyl Alcohol Manufacturing; 325199 All Other Basic Organic Chemical Manufacturing; 333618 Other Engine Equipment Manufacturing; 335312 Motor and Generator Manufacturing; 336111 Automobile Manufacturing; 336112 Light Truck and Utility Vehicle Manufacturing; 336120 Heavy Duty Truck Manufacturing; 336211 Motor Vehicle Body Manufacturing; 336311 Carburetor, Piston, Piston Ring, and Valve Manufacturing; 336312 Gasoline Engine and Engine Parts Manufacturing; 424690 Other Chemical and Allied Products Merchant Wholesalers; 424710 Petroleum Bulk Stations and Terminals; 486910 Pipeline Transportation of Refined Petroleum Products; 493130 Farm Product Warehousing and Storage; 811111 General Automotive Repair; 811112 Automotive Exhaust System Repair; 811198 All Other Automotive Repair and Maintenance | |
RIN Data Printed in the FR: No | |
Agency Contact: Christy Parsons Environmental Protection Agency Office of Air and Radiation USEPA National Vehicle and Fuel Emissions Laboratory, Ann Arbor, MI 48105 Phone:734 214-4243 Email: parsons.christy@epa.gov Julia Burch Environmental Protection Agency Office of Air and Radiation 1200 Pennsylvania Avenue NW, Washington, DC 20460 Phone:202 564-0961 Email: burch.julia@epa.gov |