Hi Mike,
I did a quick review of Arizona statutes and I find no requirement for registration for travel agents. Also the travel law website shows no requirement for registration [see
http://travellaw.com/web/faq1.html#basic1]. I checked the Arizona statutes since I don't know if the Travel Law website is up to date. My disclaimer is that I'm not an Arizona lawyer so consult an Arizona lawyer to get the best opinion on this matter.
There are no requirements for travel agent E&O insurance. However, having E&O insurance is a good idea if you are selling a lot of travel. This protects you when you make a big mistake on someone's honeymoon, etc. The big insurer for travel E&O is the
Berkely Group.
The only other item I can think of is to check your local ordinances about running a business from your home.
Best of business,
Barry