EPA amended test procedures for heavy-duty engines and vehicles to improve accuracy and reduce testing burden, and made other technical amendments affecting the certification procedures for exhaust emission standards and related requirements.

The president issued Exec. Order No. 14030, Climate-Related Financial Risk, to establish a governmentwide strategy regarding the measurement, assessment, mitigation, and disclosure of climate-related financial risk to federal government programs, assets, and liabilities, and the financing needs associated with achieving net-zero greenhouse gas emissions by 2050, limiting global average temperature rise to 1.5 degrees Celsius, and adapting to acute and chronic impacts of climate change.

The National Highway Traffic Safety Administration (NHTSA) proposed to repeal "The Safer Affordable Fuel-Efficient (SAFE) Vehicles Rule Part One: One National Program," in which NHTSA codified regulatory text and made additional pronouncements regarding the preemption of state and local laws related to fuel economy standards.

The president issued Exec. Order No. 14027, Establishment of the Climate Change Support Office; the order establishes a temporary organization within the State Department to support bilateral and multilateral engagement to address the climate crisis.

FAA established its policy for review of solar energy system projects on federally obligated airports.

FAA announced the availability of pilot program funding for environmental mitigation projects that will measurably reduce or mitigate aviation impacts on noise, air quality, or water quality at or within five miles of public-use airports.

EPA announced the availability of and seeks comment on the draft document "Technical Documentation for the Temperature Binning Framework," which provides technical documentation of a framework for analyzing the sector-specific impacts of climate change under different levels of warming.

The U.S. Forest Service proposed regulations for hunting and trapping seasons, harvest limits, and methods and means related to taking of wildlife for subsistence uses on public lands in Alaska during the 2022-2023 and 2023-2024 regulatory years.

CEQ rescinded its Draft National Environmental Policy Act Guidance on Consideration of Greenhouse Gas Emissions consistent with Exec. Order No. 13990, Protecting Public Health and the Environment and Restoring Science to Tackle the Climate Crisis.

EPA announced the availability of and seeks comment on the Draft Inventory of U.S. Greenhouse Gas Emissions and Sinks: 1990-2019.