An odd story about vehicle inspection in Massachusetts. The guy down the street who inspected my 2002 TDI last year said he couldn't this year because he'd just received his new state-mandated test-rig but the software didn't allow for emissions tests of diesel autos. He said they'd probably give him updated software at some point and then he could do it for me, but since my sticker was expired I had to go elsewhere. The guy that I did end up going to said the first guy must have been smoking something, because there is NO requirement that diesel passenger vehicles have an emissions test in MA.
I have no idea who's right but the second guy gave me a sticker, so I have a vested interest in believing him... ;->
Aha! After typing that I decided not to be so lazy and went off in search of info, finding this: