Commercial and service industry machinery manufacturing (NAICS 33331): average TRIR and DART
These are the 2024 private-industry incidence rates from the U.S. Bureau of Labor Statistics, per 100 full-time-equivalent workers. Prequalification forms often ask whether your TRIR and DART are at or below these numbers.
Other recordable cases: 1.1. "Not published" means the data does not meet BLS publication guidelines.
What this means for your prequal form
Worked example: a company in this industry with 100,000 hours worked in a year (about 50 full-time employees) would match the industry average at 1.1 recordable cases. With 400,000 hours (about 200 employees) the figure is 4.4.
TRIR = recordable cases × 200,000 ÷ hours worked. DART = (days-away cases + restricted/transfer cases) × 200,000 ÷ hours worked. Use your OSHA 300A totals for each calendar year.
Parent industry: Commercial and service industry machinery manufacturing (NAICS 3333), TRC 2.2, DART 1.1.
Detailed industries under NAICS 33331
| NAICS | Industry | TRC | DART |
|---|---|---|---|
| 333314 | Optical instrument and lens manufacturing | 1.4 | 0.5 |
| 333316 | Photographic and photocopying equipment manufacturing | 1.4 | 0.9 |
| 333318 | Other commercial and service industry machinery manufacturing | 2.5 | 1.3 |
Source: BLS Survey of Occupational Injuries and Illnesses, Table 1 (2024). NAICS 2017 codes as published by BLS.