maybe that specific model does not meet the requirements to be eligible to be for sale in california. im really not sure, if it was just in the post i would think some emissions had been removed. not my probly i live in houston where it is able to be sold
not sure exactly how CA emissions is, but go to your local inspection station and figure out the emission requirements. in TX if its over 8600 lbs it throws the emissions test into heavy duty mode which it doesn't matter if it can even check your emissions you will still pass that part of the test.