Basic chemical manufacturing (NAICS 3251): 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 0.6 recordable cases. With 400,000 hours (about 200 employees) the figure is 2.4.
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: Chemical manufacturing (NAICS 325), TRC 1.6, DART 1.0.
Detailed industries under NAICS 3251
| NAICS | Industry | TRC | DART |
|---|---|---|---|
| 32511 | Petrochemical manufacturing | 0.5 | 0.3 |
| 32512 | Industrial gas manufacturing | 0.2 | 0.1 |
| 32513 | Synthetic dye and pigment manufacturing | 1.8 | 1.6 |
| 32518 | Other basic inorganic chemical manufacturing | 1.2 | 0.7 |
| 32519 | Other basic organic chemical manufacturing | 1.8 | 1.0 |
Source: BLS Survey of Occupational Injuries and Illnesses, Table 1 (2024). NAICS 2017 codes as published by BLS.