National Association of Clean Air Agencies
EPARulemakingEPA-HQ-OAR-2022-0985

Greenhouse Gas Emissions Standards for Heavy-Duty Engines and Vehicles-Phase 3

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Last modified
Apr 10, 2024
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closed 1138d ago
National Association of Clean Air Agencies filings
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Activity

National Association of Clean Air Agencies filed 1 comment on this docket between Jun 20, 2023 and Jun 20, 2023. 94 other organizations filed here. The comment window closed 1138d ago.

What National Association of Clean Air Agencies filed (1)

Jun 20, 2023· Comment submitted by National Association of Clean Air Agencies (NACAA)· EPA-HQ-OAR-2022-0985-1499

Filed on regulations.gov — full text not in the inline record.

Abstract

Transportation is the largest source of GHG emissions in the United States, making up 29 percent of all emissions. Within the transportation sector, heavy-duty vehicles are the second-largest contributor, at 23 percent. Reducing GHG emissions is a critical step in reducing the probability of impacts from climate change, including heat waves, drought, sea level rise, extreme climate and weather events, coastal flooding, and wildfires. Some populations may be especially vulnerable to damages associated with climate change, such as the very young, the elderly, low-income people, the disabled, people of color, and indigenous populations. EPA previously took action to reduce GHG emissions from heavy-duty trucks with its Phase 1 and Phase 2 GHG standards (76 FR 57106, 81 FR 73478). With this action, EPA would revise GHG standards for all heavy-duty vehicles and engines to go beyond the existing standards.

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