| | | | 236 | Construction of Buildings | 3 | | | | Construction of Buildings 236 | Construction 23 |
| | | | 2361 | Residential Building
Construction | 4 | | | Residential Building
Construction 2361 | Construction of Buildings 236 | Construction 23 |
| | | | 2362 | Nonresidential Building
Construction | 4 | | | Nonresidential Building
Construction 2362 | Construction of Buildings 236 | Construction 23 |
| | | | 237 | Heavy and Civil
Engineering Construction | 3 | | | | Heavy and Civil
Engineering Construction 237 | Construction 23 |
| | | | 2371 | Utility System
Construction | 4 | | | Utility System
Construction 2371 | Heavy and Civil
Engineering Construction 237 | Construction 23 |
| | | | 2372 | Land Subdivision | 4 | | | Land Subdivision 2372 | Heavy and Civil
Engineering Construction 237 | Construction 23 |
| | | | 2373 | Highway, Street, and
Bridge Construction | 4 | | | Highway, Street, and
Bridge Construction 2373 | Heavy and Civil
Engineering Construction 237 | Construction 23 |
| | | | 2379 | Other Heavy and Civil
Engineering Construction | 4 | | | Other Heavy and Civil
Engineering Construction 2379 | Heavy and Civil
Engineering Construction 237 | Construction 23 |
| | | | 238 | Specialty Trade
Contractors | 3 | | | | Specialty Trade
Contractors 238 | Construction 23 |
| | | | 2381 | Foundation, Structure,
and Building Exterior
Contractors | 4 | | | Foundation, Structure,
and Building Exterior
Contractors 2381 | Specialty Trade
Contractors 238 | Construction 23 |
