The National Highway Traffic Safety Administration proposed to establish two new federal motor vehicle safety standards specifying performance requirements for all motor vehicles that use hydrogen as a fuel source. 

The Pipeline and Hazardous Materials Safety Administration and NRC jointly seek comments on issues concerning requirements in the International Atomic Energy Agency regulations for the safe transport of radioactive materials. 

The Pipeline and Hazardous Materials Safety Administration amended the Hazardous Materials Regulations to update, clarify, improve the safety of, or streamline various regulatory requirements.

EPA announced the availability of and seeks comment on a document that describes its draft approach for implementation of the EPA label program for low embodied carbon construction materials.

EPA revised regulations addressing preemption of state and local regulation of locomotives and engines used in locomotives. 

EPA announced the availability of three near-term strategies the Agency is taking to further implement its obligations and commitments under the Federal Food, Drug, and Cosmetic Act to screen for and protect against endocrine disrupting effects in humans, and seeks additional endocrine data on two groups of active ingredients currently undergoing registration review.

The Federal Trade Commission seeks comment on the overall costs, benefits, necessity, and regulatory and economic impact of its labeling requirements for alternative fuels and alternative fueled vehicles.

FEMA proposed to amend its regulations to implement the Federal Flood Risk Management Standard and update the agency's eight-step decisionmaking process for floodplain reviews.

The Pipeline and Hazardous Materials Safety Administration amended the Hazardous Materials Regulations to suspend authorization of liquefied natural gas (LNG) transportation in rail tank cars pursuant to a final rule published on July 24, 2020, pending the earlier of either completion of a companion rulemaking evaluating potential modifications to requirements governing rail tank car transportation of LNG, or June 30, 2025.

EPA announced the availability of and seeks comment on draft guidance to expand the availability of virucidal claims for antimicrobial pesticides and provide framework for registrants who seek to make such claims.