| Licenses with Restrictions | Restrictions |
| Construction Supervisor License | 00 - Any single or two-family home regardless of size, or any other building containing less than 35,000 cf enclosed space (MGL C. 112 S.60L) |
| | 1G - Any single or two-family home, regardless of size |
| Construction Supervisor Specialty License | 1A - Masonry only |
| | DM - Demolition |
| | RF - Roofing |
| | SF - Solid Fuel Burning Devices |
| | SW - Siding and Windows |
| Oil Burner Technician Certificate | 00 - None |
| | 10 - Gravity feed |
| | 15 - 1 & 2 Oil |
| Engineer Special To Have Charge | 05 - HRT |
| | 07 - VRT VT |
| | 06 - Scotch |
| | 08 - Flueless |
| Steam Fire Engineer License | 05 - HRT Straight WT |
| | 06 - Scotch Coil WT |
| | 07 - VFT VT, VRT Electric |
| Engineer Special To Operate License | 05 - HRT Straight WT |
| | 06 - Scotch Coil WT |
| | 07 - VFT VT, VRT Electric |
| Elevator Operator License | 00 - None |
| | 01 - Other |
| | 02 - Special limited |
| | 03 - Automatic pushbutton |
| | 04 - Freight |
| Hoisting Engineer License | 1A - All hoisting equipment (except electric and air powered hoisting equipment), including all friction clutch machines, derricks, guy derricks, stiff legs, Chicago booms, gin poles, lattice booms, and equipment with telescoping booms with or without wire ropes. |
| | 1B - Equipment with telescoping booms with or without wire ropes. |
| | 1C - Equipment with hydraulic telescoping boom without wire ropes. |
| | 2A - Crawler and rubber-tired excavators, backhoes & loaders. |
| | 2B - Backhoes and front-end loaders. |
| | 2C - Front-end loaders. |
| | 3A - Electric and air powered hoisting equipment. |
| | 4A - Unrestricted |
| | 4B - Drill rigs |
| | 4C - Pipeline sidebooms |
| | 4D - Concrete pumps |
| | 4E - Catchbasin cleaners |
| | 4F - Sign-hangers |
| | 4G - Mowers |
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