Department 528 CMR - BUREAU OF PIPEFITTERS AND REFRIGERATION TECHNICIANSBrowse as ListSearch WithinTitle 528 CMR 2.00 - Purpose, Scope And DefinitionsTitle 528 CMR 3.00 - Standards AdoptedTitle 528 CMR 11.00 - Prerequisites For Examinations For Pipefitters, Refrigeration Technicians, And Sprinkler Fitters