10 mins wait.... I really like the way AZ DOT website is organized. I checked wait time online before I left my office and picked the location that I can come back to my office shortest time possible.
Wait was in fact only 10 mins and there were enough staff on site directing traffics (a little they had), inspection staff was courteous, I was really in and out.
Now they accept credit card, cash and check. Last time I had to come for emission test was over 10 years ago and at that time they only accepted checks.
As I was driving out, I notice they have repair shop and DMV next to each other, I just thought this will make a convenient stop here.
As soon as I got back to my office, I processed renewal online (test result was already sent) and two business days later, new tag came in a mail! Very efficient.