Mining and oil and gas field machinery manufacturing (NAICS 33313): 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: 0.5. "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 0.5 recordable cases. With 400,000 hours (about 200 employees) the figure is 2.0.
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: Agriculture, construction, and mining machinery manufacturing (NAICS 3331), TRC 2.7, DART 1.6.
Detailed industries under NAICS 33313
| NAICS | Industry | TRC | DART |
|---|---|---|---|
| 333131 | Mining machinery and equipment manufacturing | 2.5 | 1.2 |
| 333132 | Oil and gas field machinery and equipment manufacturing | 0.7 | 0.4 |
Source: BLS Survey of Occupational Injuries and Illnesses, Table 1 (2024). NAICS 2017 codes as published by BLS.