TomC would probably be your best source on this as he lives in California and sells heavy truck that are affected by CARB rules.
I have at this time received a few emails on it, for some reason a few folks are kind of afraid of posting something here at the Old Shark Tank. Looks like I can take my no good, oil leaking worn out, oil drippin mosquito killing Detroit out there and will not have to worry about it.
It pays to check now days, in this environmentally conscious
society we have progressed to.
Thanks for your input Belfert ...