James, Arizona/ Maricopa County allows you 90 days prior to the registration expiration to have it tested.
yup i know. im in no rush. it pasted the last 3 years when i registered it back down here and its federal emissioned so i had no egr or cat from the factory. they seem to like to blame my truck for things. first year it wouldnt register on their machine and it was "my exhausts fault" for being too far under the truck, that didnt fly with me so after 3 test, i got my directors certificate for a free pass that year. Following year, the kid jumped under the hood searching all around for an EGR, couldnt find it. Then looked under the truck for a cat and proceeded to explain to me i had neither, well no shit sherlock. So when he went to plug my info into the computer, a nice big screen popped up stating "NO EXHAUST GAS RECIRCULATOR OR CATALYTIC CONVERTER ON THIS VEHICLE". he stayed quiet after that. Last year was the only year that it went through without someone causing an issue. I can see why they get all up tight about my truck in there, you can definitely tell nothing about it is stock but it complys with AZ laws and it will pass with flying colors every time!