Blame fleet efficiency standards [1] and the light-truck loophole [2].
[1] https://me.engin.umich.edu/news-events/news/cafe-standards-c...
[2] https://digitalcommons.law.lsu.edu/cgi/viewcontent.cgi?artic...
Blame fleet efficiency standards [1] and the light-truck loophole [2].
[1] https://me.engin.umich.edu/news-events/news/cafe-standards-c...
[2] https://digitalcommons.law.lsu.edu/cgi/viewcontent.cgi?artic...