Yes, they weren't doing this on their own initiative, they had a contract to test 4 specific vehicles of which 3 were VW TDIs, I think. They didn't initially th

Yes, they weren't doing this on their own initiative, they had a contract to test 4 specific vehicles of which 3 were VW TDIs, I think. They didn't initially think they'd found cheating, and it took a year or two for CARB to get interested and things to develop. You'd think someone would fund broader testing...