Automakers will soon pay steeper fines for gas-guzzling fleets under Biden, after Trump break

That’s the message behind a notice of proposed rulemaking filed on Wednesday by the National Highway Traffic Safety Administration (NHTSA), which regulates fuel economy in concert with the EPA’s greenhouse gas emissions goals. The rulemaking intends to enforce higher penalties, sooner—perhaps even retroactively—for automakers who violate U.S. corporate average fuel economy standards (CAFE).