California requires truck manufacturers to sell more zero-emission heavy trucks in the state.
By Priya Singh

Key Highlights:
President Trump’s policies could pose a challenge to many green energy projects, including a major effort in California. The state had big plans to replace thousands of diesel trucks with electric ones. This plan, which has been closely followed by other states and even other countries, aimed to make a major step forward last year.
It required that some of the over 30,000 trucks moving cargo in and out of ports switch to trucks that don’t release carbon dioxide. However, Trump's election has already caused a setback for this ambitious plan.
After Mr. Trump was elected, California had to cancel its plan. The plan needed a federal waiver, but the new government, closely linked to the oil industry, would likely reject it. This stopped California from making trucking companies clean up their fleets. It was a big blow since California has always had stricter tailpipe rules because of its bad air quality. California officials say their effort isn’t over. They plan to keep it going with other rules and by offering incentives to truckers to switch to electric trucks.
Some experts said the plan had issues even before Trump’s election. The batteries for electric trucks are too expensive. They take too long to charge. Plus, there aren’t enough charging stations. "It was too ambitious," said Daniel Sperling, a professor at the University of California, Davis, who focuses on sustainable transportation.
"We know we have a lot of work to do, but we also have tools to get it done," said Liane M. Randolph. She is the chair of the California Air Resources Board, which sets clean air standards in the state. She spoke at the opening of a truck charging station near the Port of Long Beach in January.
California requires truck manufacturers to sell more zero-emission heavy trucks in the state. This rule is better protected from challenges by the Trump administration. After the rule was introduced, manufacturers agreed to follow it, no matter what happens in future legal battles.
In return, California agreed to make the rule less strict. California’s plan to electrify port trucks had a lot of benefits. Fumes from these trucks cause health problems like childhood asthma in nearby neighborhoods. Heavy-duty trucks in California release carbon dioxide, the main cause of climate change, as the whole country of New Zealand each year.
These trucks travel distances that battery-powered semis can cover on a single charge, about 200 miles. The goal was that with the right rules and incentives, carriers, truck manufacturers, charging companies, and utilities would work together to build an electric trucking network. This network would help California reach its bigger goal of removing diesel trucks from the state by 2045.

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