On July 26, 2019, the National Highway Traffic Safety Administration (NHTSA) finalized a rule to freeze civil penalties for violating fuel efficiency standards. In December 2016 NHTSA had finalized a rule that would have increased the fines from $5.50 to $14 per tenth-of-an-mpg, and allowed for adjustments for inflation between the publication date and the assessment of the violation. Today's action replaces the 2016 rule and instead freezes penalties at $5.50 per ten-of-an-mpg.