The funding, approved by Congress and overseen by the Environmental Protection Agency, had been blocked since January, when President Trump ordered a pause and review of climate and clean energy programs.
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.
About 80 percent of manufacturing investments spurred by a Biden-era climate law have flowed to Republican districts. Efforts to stop federal payments are already causing pain.
Some have halted work on the Biden-era $5 billion program to build E.V. charging stations. Others plan to keep building. Most are confused.
The order is the latest Trump administration effort against Biden-era initiatives that intended to promote electric vehicles and reduce greenhouse gas emissions.
Legal experts said the president was testing the boundaries of executive power with aggressive orders designed to stop the country from transitioning to renewable energy.
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.
The president said he’d declare an energy “emergency,” promote drilling and end support for electric cars. His pivot to oil and gas follows the hottest year in recorded history.
Rules for a $7,500 tax break for electric vehicle purchases and leases recently changed, but more far-reaching changes are expected when President-elect Donald J. Trump takes office.
State regulators said the measures would probably have been rejected by the Trump administration and that they would focus on homegrown legal strategies instead.