The administration said the technical changes are expected to allow for more flexibility for truck companies, when compared to a Biden-era rule.
The move is also expected to undermine some of the Biden rule’s pollution protections.
In particular, the Trump administration is proposing to shorten the amount of time that engine manufacturers have to guarantee that pollution controls will work.
The Biden administration extended this warranty from 100,000 miles to 450,000 miles. The Trump administration is revising it back down to 100,000 miles.
In a recent Hill op-ed, Environmental Protection Agency (EPA) assistant administrator Aaron Szabo said that this change would reduce compliance costs by up to 50 percent.
It is retaining other parts of the Biden-era rule, namely its strict emissions requirements for new engines. The EPA estimates that the shorter warranty would reduce the effectiveness of federal limits by 12 percent in the year 2055.
In addition, the Trump administration is proposing to delay an increase in the amount of time that emissions standards actually apply to truck engines.
Further, it is proposing to end a requirement that engines be made to dramatically slow down when emissions control systems fail. Instead, under the EPA proposal, truckers would get a warning light or warning sound when this occurs.
Overall, the administration said that the changes it is proposing would save the industry $12 billion or about $6,000 per new truck.
Read more at TheHill.com.
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