The state will no longer require some truckers to shift away from diesel semis but hopes that subsidies can keep dreams of pollution-free big rigs alive.
The order is the latest Trump administration effort against Biden-era initiatives that intended to promote electric vehicles and reduce greenhouse gas emissions.
Automakers and even some Republicans may fight to preserve funds, and environmental activists will likely sue, but some experts said that some changes may not survive legal challenges.
State regulators said the measures would probably have been rejected by the Trump administration and that they would focus on homegrown legal strategies instead.
The Trump administration is expected to revoke the program, setting up a legal clash between the state and federal government.
Gov. Gavin Newsom said California would fill the void for residents if the Trump administration killed a $7,500 E.V. tax credit.
Donald J. Trump promised to erase Biden tailpipe rules that are designed to get carmakers to produce E.V.s. But Detroit wants to keep them.
A pesar de que Trump se ha opuesto a las políticas que favorecen a los vehículos eléctricos, si llega a la presidencia podría aliviar el escrutinio regulatorio de Tesla o proteger los créditos y subsidios lucrativos.
Although Donald Trump has opposed policies that favor electric cars, if he becomes president he could ease regulatory scrutiny of Tesla or protect lucrative credits and subsidies.
The Inflation Reduction Act was a compromise between competing priorities. Evaluating the law on the effectiveness of the $7,500 tax credit for E.V.s is tricky.