> Do trucks and SUVs in the US even have emissions standards? I know they're exempt from emissions tests in many states which is part of the reason for their po

> Do trucks and SUVs in the US even have emissions standards? I know they're exempt from emissions tests in many states which is part of the reason for their popularity. In 1999, California enacted its LEV (low emissions vehicle) II regulations, which moved most pickup trucks and SUVs into the same regulatory scheme as passenger vehicles: https://www.arb.ca.gov/msprog/levprog/levii/factsht.pdf https://www.arb.ca.gov/msprog/levprog/levii/factsht.pdf