Infrastructure and planning
*Revoked Obama-era flood standards for federal infrastructure projects, like roads and bridges. The standards required the government to account for sea-level rise and other climate change effects.
*Relaxed the environmental review process for federal infrastructure projects.
*Revoked a directive for federal agencies to minimize impacts on water, wildlife, land and other natural resources when approving development projects.
*Revoked an Obama executive order promoting “climate resilience” in the northern Bering Sea region of Alaska, which withdrew local waters from oil and gas leasing and established a tribal advisory council to consult on local environmental issues.
*Reversed an update to the Bureau of Land Management’s public land use planning process.
*Withdrew an Obama-era order to consider climate change in managing natural resources in national parks.
*Restricted most Interior Department environmental studies to one year in length and a maximum of 150 pages, citing a need to reduce paperwork.
*Withdrew a number of Obama-era Interior Department climate change and conservation policies that the agency said could “burden the development or utilization of domestically produced energy resources.
*Eliminated the use of an Obama-era planning system designed to minimize harm from oil and gas activity on sensitive landscapes, such as national parks.
*Eased the environmental review processes for small wireless infrastructure projects with the goal of expanding 5G wireless networks.
*Withdrew Obama-era policies designed to maintain or, ideally improve, natural resources affected by federal projects.
*Proposed plans to streamline the environmental review process for Forest Service projects.
Toxic substances and safety
*Rejected a proposed ban on chlorpyrifos, a pesticide linked to developmental disabilities in children. (A European Union ban is to take effect in 2020.)
*Narrowed the scope of a 2016 law mandating safety assessments for potentially toxic chemicals like dry-cleaning solvents. The E.P.A. said it would focus on direct exposure and exclude indirect exposure such as from air or water contamination. In November, a court of appeals ruled the agency must widen its scope to consider full exposure risks.
*Reversed an Obama-era rule that required braking system upgrades for “high hazard” trains hauling flammable liquids, like oil and ethanol.
*Removed copper filter cake, an electronics manufacturing byproduct comprised of heavy metals, from the “hazardous waste” list.
*Ended an Occupational Safety and Health Administration program to reduce risks of workers developing the lung disease silicosis.
*Proposed changing safety rules to allow for rail transport of liquefied natural gas, which is highly flammable.
*Rolled back most of the requirements of a 2017 rule aimed at improving safety at sites that use hazardous chemicals that was instituted after a chemical plant exploded in Texas.
*Announced a review of an Obama-era rule lowering coal dust limits in mines. The head of the Mine Safety and Health Administration said there were no immediate plans to change the dust limit but has extended a public comment period until 2022.