California’s vow to reduce auto pollution may be setting up a full-out war with Trump From smog to greenhouse gases, state regulators refuse to yield as legal battles loom. In addition, a dozen other states have adopted California rules as their own, giving regulators here an outsize influence on the national marketplace. Sept. 13, 1955: Buildings in Los Angeles are barely visible in a picture looking east at 1st and Olive streets. Highlights from California’s emissions regulations 1959 California launches the first statewide standards on vehicle emissions 1967 Gov. Although automakers insisted they weren’t calling that into question, Nichols expressed skepticism about their commitment because they asked Trump to review federal rules.

Source: Los Angeles Times March 24, 2017 21:10 UTC