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| NAICS [2012] → |
| NAICS Code | N.A. Industry [2012] | NAICS Codes | ||
|---|---|---|---|---|
| (6-digit) | |||
| 23821 | Electrical Contractors and Other Wiring Installation Contractors | 1 | ||
| 23822 | Plumbing, Heating, and Air-Conditioning Contractors | 1 | ||
| 23829 | Other Building Equipment Contractors | 1 | ||