528 CMR: Bureau of Pipefitters & Refrigeration Technicians
| Citation | Title |
|---|---|
| 528 CMR 1-9 | Reserved |
| 528 CMR 10 | Power Piping |
| 528 CMR 11 | Prerequisites for Examinations for Pipefitters, Refrigeration Technicians, and Sprinkler Systems |
| 528 CMR 12 | Fire Protection Sprinkler System Contractor Licensing |
| 528 CMR 13 | Process Piping |