California abandons diesel truck ban and 3 other clean-air rules before Trump is sworn in
calmatters.org
Because Trump would be unlikely to approve them, California has no choice but to abandon its groundbreaking rules for zero-emission trucks and cleaner locomotives.

This sort of sucks. I think it’s related to all of the commercial diesel trucks that were on Craigslist the last few years with “all sales final” or “up to you to get it registered” note.