States ramp up electric vehicle incentives as Trump revokes California emissions authority

Seventeen states are scrambling to preserve their clean vehicle goals after the Trump administration rescinded California’s power to set stricter tailpipe emissions rules.

Rambo Talabong reports for Inside Climate News.

In short:

• California and allied states sued the Trump administration over its rollback of the state's Clean Air Act waiver, which allowed stronger vehicle emissions standards and an electric vehicle sales mandate.
• States are expanding EV rebates, building charging infrastructure, and passing clean fuel rules to offset the loss of federal support and regulatory authority.
• Policies targeting truck-heavy areas and pollution-intensive facilities are gaining traction, especially in states with high air pollution and warehouse growth.

Key quote:

“The federal government isn’t going to come save us.”

— Alex Ambrose, analyst at New Jersey Policy Perspective

Why this matters:

Transportation is the largest source of greenhouse gas emissions in the United States, and tailpipe pollution directly harms public health — especially in communities near highways, ports, and freight hubs. California’s emissions authority under the Clean Air Act had long been a keystone in U.S. climate and air quality policy, with nearly 20 states adopting its tougher rules. Without federal backing, these states now face steep costs and legal uncertainty as they try to maintain momentum toward cleaner vehicles. Meanwhile, the burden of diesel pollution continues to fall heavily on low-income neighborhoods and communities of color. If states cannot enforce aggressive vehicle standards or fund sufficient EV transitions, the U.S. risks backsliding on climate targets and increasing health disparities tied to air pollution.

Read more: Republicans push to eliminate fines for carmakers that violate fuel economy rules