Browner: Fuel economy, tailpipe emissions rules to go final next week

The states, led by California, agreed to shelve their rules while the joint national program is in effect.

The White House has frequently cited the new federal rules in opposing Capitol Hill proposals that would overturn EPA’s ability to regulate greenhouse gases. The White House argues that nullifying EPA power would hurt automakers by opening the door to a patchwork of state requirements.

Automakers agree.


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