I will need to get my car smogged in Arizona soon...

I understand they require cars to be smogged if you live in the Phoenix, or Tuscon...

Can you just drive to another county and have it smogged there? Anybody know the rules?
If they require you to live in that county, could I have a "home address" for the DMV in one of these areas if you know what I mean? Think that would do the trick?

If that is tricky, does the regular emissions tests require a visual inspection or is it sniffer only?

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2016 Monsoon Gray Audi Allroad - 21k
2008 Black Mercedes E350 4Matic Sport - 131k
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2003 Gray Mercedes ML350 - 122k