The Bureau of Pipefitters, Refrigeration Technicians, and Sprinkler Fitters is responsible for examining qualified candidates for licensure as pipefitters, refrigeration technicians, and sprinkler fitters. In the event of an incident or accident relating to such devices or equipment, OPSI inspectors may establish an investigation to determine cause and to prosecute violators of relevant laws and/or regulations.
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Online
If looking for a status update on a license renewal, please put your full OPSI license number, including prefix, in the subject line.
OPSI-info@mass.gov
Phone
Main Phone Number
(617) 727-3200
Open Mon. - Fri., 8:45 am - 5:00 pm
MassRelay (TTY & ASCII)
711