Support activities for transportation (NAICS 488): 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: 0.7. "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 1.2 recordable cases. With 400,000 hours (about 200 employees) the figure is 4.8.
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: Transportation and warehousing (NAICS 48-49), TRC 4.4, DART 3.5.
Detailed industries under NAICS 488
| NAICS | Industry | TRC | DART |
|---|---|---|---|
| 4881 | Support activities for air transportation | 4.1 | 2.7 |
| 4882 | Support activities for rail transportation | 2.5 | 2.0 |
| 4883 | Support activities for water transportation | 2.2 | 1.6 |
| 4884 | Support activities for road transportation | 1.9 | 1.4 |
| 4885 | Freight transportation arrangement | 1.2 | 0.8 |
| 4889 | Other support activities for transportation | 2.3 | 1.5 |
Source: BLS Survey of Occupational Injuries and Illnesses, Table 1 (2024). NAICS 2017 codes as published by BLS.