Building permits in Maine
1 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.
1 checked against the department's own page
Licensing
No statewide general-contractor license — GCs and most trades are not state-licensed (local licensing only); state law only requires a written contract for residential jobs over $3,000.
No statewide GC license (local licensing); Maine Attorney General — Consumer Protection Division