Building permits in Hawaii
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
A state license is required for all contractors (HRS Ch. 444), in three classes — General Engineering (A), General Building (B), and Specialty (C) — each requiring experience plus exams.
Hawaii DCCA — Contractors License Board (Professional & Vocational Licensing)