il req's a dot inspection for all d plates and higher, and all commercial vehicles.
if you have a standard d plates, you will get a 6 month sticker
if you have a dot number, you will get a 1 year sticker.
most cops dont think to look for the sticker in the windshield. if you get pulled over by a state cop, or the tech man, it's a hefty ticket, then they will proceed to tech your truck and write every ticket they find, as you have not had your truck inspected so they are doing it for you.
father in law had that happen to him yesterday. cost him about $800+ by the time it was all said and done.
i would suggest you get tested.
but no, there is no emissions.