How do you still have smog testing on vehicles theses days in the USA?
In Canada we basically have come to the conclusion that the largest % of vehicles on the road are newer and so they have had fairly very strict laws for emissions from the factory. Why waste time and resources asking Tim in his 94 ranger which is 1/1000 vehicles on the road to pass emissions? It is a waste of our time and resources.
So basically we dont test it, but you need to have the cats and exhaust system at least on the truck to get it to pass inspection. Then you can rip it off after. Nobody cares. Around me I see 95% of the cars newer than 2015, so it doesnt make sense to punish the guy who wants a 1994 lol.
You Americans make me laugh sometimes..