I just got tagged as tampered for a evap canister that passed two years ago on my 5.3 swap into a 94 c1500. I've been calling around and it seems this is a new point of interest for ADEQ. It looks like they are sending you to the "waiver line" if anything looks out of place. I haven't gone yet but it sounds a lot like the referee system we had in California. I certainly won't pass that without a lot of work. Kind of bummed, I don't like having the parking/driving restrictions on this truck that classic insurance will require.