The state file is the first pass: licensing authority, reciprocity posture, workers' compensation threshold, bond notes, and renewal rules. It should not be treated as the final filing answer for a job site.
Treat the state registration as a consumer-protection/HICPA layer, then confirm the city or county permit desk for the actual filing path.
Primary licensing body
Pennsylvania Office of Attorney General; local building departments is the main statewide reference point for this file. County and municipal departments may still impose separate registration, permit, insurance, inspection, or bond requirements.