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Check an Office of Public Safety and Inspections (OPSI) License
The OPSI regulates areas from amusement devices to construction supervisors to refrigerator technicians.
Report an incident
Please be advised that the Office of Public Safety and Inspections (OPSI) has instituted a new protocol for the reporting of incidents that require the immediate attention of the OPSI.
Office of Public Safety and Inspections (OPSI) Licensing
Information on getting a first-time license or license renewal
Office of Public Safety and Inspections (OPSI) Exams
Find the information you need about Office of Public Safety and Inspection exams
Massachusetts State Building Code - 780 CMR
An unofficial copy of all versions of the Mass. State Building Code
File a complaint against a DPL licensee
Consumers have millions of interactions with our 580,000 licensees every year. If you experienced an unsatisfactory outcome, you can file a complaint with our Office.
OPSI Key Resources
Find a list of some of the most requested resources here
Office of Public Safety and Inspections PRR
Learn how to request public records from the Executive Office of Housing and Economic Development Office of Public Safety and Inspections.