Ariz. Rev. Stat. § 42-1130
B. An out-of-state business that is in this state on a temporary basis solely for the purpose of performing disaster recovery from a declared disaster during a disaster period is not required to file, remit, withhold or pay state or local tax as follows:
F. For the purposes of this section:
5. "Out-of-state business" means a business entity that existed as an operating entity before the declared disaster, including an affiliate solely by common ownership of a registered business, whose services are requested by a registered business in this state or by the state or a local government for the purpose of performing disaster recovery in this state and that meets all of the following conditions: