Building permits in Arizona
2 jurisdictions, each with the department that issues, its portal and its phone number. Cities issue their own permits; counties cover unincorporated areas, which is the distinction that sends most contractors to the wrong office.
2 checked against the department's own page
Licensing
A state ROC license is required for essentially all residential and commercial contracting work (no handyman exemption above $1,000); the ROC licenses both general and specialty contractors.
Arizona Registrar of Contractors (ROC)