Building permits in Oregon
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 statewide CCB license is required — anyone who works for compensation on any construction or property improvement must be licensed (16-hr pre-license training + exam, surety bond, and liability insurance).
Oregon Construction Contractors Board (CCB)