| 238220 |
Duct cleaning--are classified in Industry 561790, Other Services to Buildings and Dwellings |
| 238220 |
Installing septic tanks and systems--are classified in Industry 238910, Site Preparation Contractors |
| 238220 |
Water well drilling (except water intake wells in oil and gas fields) and water well pump and piping system installation--are classified in Industry 237110, Water and Sewer Line and Related Structures Construction |
| 238220 |
Repair and maintenance of commercial refrigeration equipment or fire extinguisher and waterless fire suppression systems, without installation--are classified in Industry 811310, Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance. |
| 238290 |
Manufacturing industrial equipment with incidental installation--are classified in Sector 31-33, Manufacturing |
| 238290 |
Repair and maintenance of commercial refrigeration equipment or production equipment--are classified in Industry 811310, Commercial and Industrial Machinery and Equipment (except Automotive and Electronic) Repair and Maintenance |
| 238290 |
Installing prefabricated window and door units--are classified in Industry 238350, Finish Carpentry Contractors. |
| 238310 |
Applying stucco--are classified in Industry 238140, Masonry Contractors |
| 238310 |
Insulating pipes and boilers--are classified in Industry 238290, Other Building Equipment Contractors. |
| 238320 |
Painting lines on highways, streets, and parking lots--are classified in Industry 237310, Highway, Street, and Bridge Construction |