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- MGL Chapter 146 Section 3 - Hoisting
- 520 CMR 6.00 file size 1MB - Hoisting Machinery
- MGL Chapter 146 Section 46 - 51 - Boilers Pressure/Vessels
- MGL Chapter 146, Section 50A, 50B, 50C - Nuclear Plants
- MGL Chapter 146, Section 67A - Oil Burners
- 527 CMR 4.00 - (299kb) Oil Burner Equipment
- MGL Chapter 146, Section 81 - 88 - Pipe Fitters
- 528 CMR - (27kb) Power, Heating, and Cooling Piping & Process Piping
- MGL Chapter 146, Section 81 - 88 - Refrigeration
- MGL Chapter 146, Section 81 - 88 - Sprinkler Fitter
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