The Trump administration plans to freeze Obama-era fuel-efficiency standards starting in 2021, according to a report from The Washington Post. The report says the Trump administration "would go even further by restricting a state's ability to set its own fuel standards, which would be a strike against California and its strict state-specific emissions rules," reports The Verge. From the report: The proposal has been reportedly drafted by the Department of Transportation's National Highway Traffic and Safety Administration, and the plan right now is to freeze standards for cars and light trucks at levels set for the year 2021 and keep them their for five years. The Obama administration's rules, which involved a partnership with California and car makers, set standards at 50 miles per gallon for cars and light trucks by 2025. Obama also, through the Clean Air Act, granted California a waiver to set its own, higher standards. That way, if automobile manufacturers wanted to maintain a presence in the lucrative California market, they'd have to abide by the new rules. The Trump administration now says a separate law overrules that arrangement, The Washington Post reports.