Boiler, tank, and shipping container manufacturing (NAICS 3324): 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: 1.5. "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 1.7 recordable cases. With 400,000 hours (about 200 employees) the figure is 6.8.
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: Fabricated metal product manufacturing (NAICS 332), TRC 3.2, DART 1.8.
Detailed industries under NAICS 3324
| NAICS | Industry | TRC | DART |
|---|---|---|---|
| 33241 | Power boiler and heat exchanger manufacturing | 3.2 | 1.5 |
| 33242 | Metal tank (heavy gauge) manufacturing | 3.9 | 2.5 |
| 33243 | Metal can, box, and other metal container (light gauge) manufacturing | 3.1 | 1.6 |
Source: BLS Survey of Occupational Injuries and Illnesses, Table 1 (2024). NAICS 2017 codes as published by BLS.