Here is the Deal.
Effective March 1 2007 any car 15 years or older with Collector Car Insurance does not have to go through Emissions in Maricopa or Pima Counties. You must show proof that it has that type of ins when registering!!
If anyone needs info on collector car ins let me know I have Grundy Worldwide on 3 of my mustangs and that saves me at least $1000 a year!!! I have $10,000 Coverage on my 87 and 89 and have $5000 on the Pace car until its done and it cost me $370 a year, no mileage contraints but you have to have a daily driver and use of the car is for pleasure, special events etc.