TCR, interpreted
Above average
4.1 avg TCR
Industry profile · NAICS 336120
Assembly plants, heavy trucks, and buses on chassis of own manufacture
Workplace injury rates across 132 OSHA-reporting establishments in this industry, 2016–2024. Average TCR uses the 124 establishments with a credible rate.
- 132
- Employers
- 4.1
- Avg TCR (rated)
- 3.3
- BLS benchmark
- 8,738
- Injuries (all)
The industry picture
According to OSHA ITA filings (2016–2024), Assembly plants, heavy trucks, and buses on chassis of own manufacture ranks #321 of 540 industries with at least 100 rated employers by average Total Case Rate (higher TCR = more injuries per 100 workers). The 124 rated employers in Assembly plants, heavy trucks, and buses on chassis of own manufacture average 4.1 recordable injuries per 100 workers, 1.2 times the BLS national benchmark of 3.3.
- #321 of 540
- corpus TCR rank · ≥100 rated
- 4.1
- avg TCR · rated subset
- 3.3
- BLS national benchmark
- 124
- rated employers
ITA inventory (132) and injury totals cover every reporting establishment; the average TCR is the rated subset only. Corpus rank matches /rankings/most-dangerous-industries (≥100 rated employers). BLS IIF is a separate survey population, see Methodology → Three Populations.
Where Assembly plants, heavy trucks, and buses on chassis of own manufacture sits nationally on injury rate
Average Total Case Rate, industries with ≥100 rated employers
4 Lower than most lower TCR than 59% of 540 industries
Industries, banded by average TCR
Each bar is a band; taller bars hold more industries. The dashed line + filled bar mark this entry. Hover or tap any bar for its full count and share, and where it sits relative to this entry.
Source OSHA Injury Tracking Application (2016–2024) · 2026-08-25
Assembly plants, heavy trucks, and buses on chassis of own manufacture injury rate, 2016–2024
Industry-average TCR has fallen across this span (5.3 → 3.6) · NAICS 336120
What Assembly plants, heavy trucks, and buses on chassis of own manufacture Safety Data Reveals
According to OSHA's Injury Tracking Application (2016–2024), Assembly plants, heavy trucks, and buses on chassis of own manufacture ranks #321 of 540 industries with at least 100 rated establishments by rated-subset average Total Case Rate (same basis as the most-dangerous-industries ranking; higher TCR means more injuries). The Assembly plants, heavy trucks, and buses on chassis of own manufacture sector (NAICS 336120) encompasses 132 distinct employer establishments currently reporting to OSHA's Injury Tracking Application. Across this cohort, workers have logged 8,738 recordable injuries during the 2016–2024 reporting window. The industry-weighted average Total Case Rate (TCR) of 4.1 injuries per 100 full-time workers per year is computed on the 124 establishments with a credible rate (see methodology). Because OSHA's ITA mandates submission from establishments with 250+ employees plus all high-hazard industries at 20+ employees, this dataset represents a structural slice of U.S. workplace risk rather than a voluntary sample.
The Bureau of Labor Statistics publishes a separate national benchmark TCR of 3.3 for this NAICS code, derived from the BLS Survey of Occupational Injuries and Illnesses. Comparing the two, the ITA-reported rate of 4.1 is higher than the BLS benchmark, a gap that typically widens when the industry contains many large, high-exposure establishments required to file ITA reports. Employers in the table below are sorted so you can see how far individual establishments deviate from both the industry average and the national benchmark.
The practical value of industry-level safety data is threefold. First, jobseekers can gauge whether a prospective employer is better or worse than its industry peers, not just absolute injury counts, which tilt toward larger payrolls. Second, insurers and workers' compensation carriers use sector TCR as a baseline for experience-modification adjustments. Third, safety professionals benchmark their own programs against the cohort median. Use the grade-sorted employer list below to identify specific establishments within Assembly plants, heavy trucks, and buses on chassis of own manufacture that outperform or underperform the sector average, and click through to each record for year-by-year injury, illness, and fatality breakdowns.
Employers in this industry, by injury rate
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Nationwide industries with similar injury rates or employer scale
Two PlainSafetyScore-derived peer sets for Assembly plants, heavy trucks, and buses on chassis of own manufacture: nearest NAICS cohorts by rated-subset average TCR and by OSHA-reporting employer inventory. These are cross-industry neighborhoods, not the employer list above.
Similar average TCR
Nearest industries by rated-subset Total Case Rate (4.1 here).
Grain elevators merchant wholesalers grain TCR 4.1 Aircraft maintenance and repair services (except factory conversion, factory overhaul, factory rebuilding) TCR 4.1 Textile products finishing TCR 4.1 Bar, nonferrous metals (except aluminum, copper), made from purchased metals in wire drawing plants or in integrated secondary smelting and rolling, drawing, or extruding plants TCR 4.1
Similar employer inventory
Nearest industries by reporting employer count (132 here).
Safety grades are a transparent derived index PlainSafetyScore computes from public OSHA and BLS data, not an official OSHA rating. Read our methodology - how this data is sourced, computed, and verified.
Frequently Asked Questions
What is the average injury rate (TCR) in Assembly plants, heavy trucks, and buses on chassis of own manufacture?
Across 124 OSHA-reporting establishments with a credible rate, Assembly plants, heavy trucks, and buses on chassis of own manufacture averages 4.1 recordable injuries per 100 full-time workers per year (Total Case Rate, 2016-2024). The BLS national benchmark for this NAICS code is 3.3.
How does Assembly plants, heavy trucks, and buses on chassis of own manufacture compare with other industries nationally?
Assembly plants, heavy trucks, and buses on chassis of own manufacture ranks #321 of 540 industries with at least 100 rated employers by average TCR (highest TCR = #1, most dangerous). That places it above 59% of ranked industries by injury rate.
How many employers report in Assembly plants, heavy trucks, and buses on chassis of own manufacture?
132 establishments report to OSHA's Injury Tracking Application under this NAICS code, of which 124 have a credible enough filing history to carry a rated average TCR.
Working in Assembly plants, heavy trucks, and buses on chassis of own manufacture?
This sector averages 4.1 against a BLS benchmark of 3.3 - but individual employers span the full A-to-F range.
- Look up a specific employer in this industry, not just the sector average. Look up an employer
- See how this industry ranks against every other sector. Industry rankings
- Learn what an A-to-F grade requires within an industry benchmark. How grades work
Sector figures use the credible-subset mean across reporting employers; a benchmark is not any single establishment's measured rate.
Every figure and grade on PlainSafetyScore is computed directly from OSHA's published Injury Tracking Application data and BLS industry benchmarks, no number is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these safety grades, or report a data error. Data current as of 2016-2024 OSHA ITA release.
Assembly plants, heavy trucks, and buses on chassis of own manufacture Safety FAQ
What is the average injury rate (TCR) in Assembly plants, heavy trucks, and buses on chassis of own manufacture?
Across 124 OSHA-reporting establishments with a credible rate, Assembly plants, heavy trucks, and buses on chassis of own manufacture averages 4.1 recordable injuries per 100 full-time workers per year (Total Case Rate, 2016-2024). The BLS national benchmark for this NAICS code is 3.3.
How does Assembly plants, heavy trucks, and buses on chassis of own manufacture compare with other industries nationally?
Assembly plants, heavy trucks, and buses on chassis of own manufacture ranks #321 of 540 industries with at least 100 rated employers by average TCR (highest TCR = #1, most dangerous). That places it above 59% of ranked industries by injury rate.
How many employers report in Assembly plants, heavy trucks, and buses on chassis of own manufacture?
132 establishments report to OSHA's Injury Tracking Application under this NAICS code, of which 124 have a credible enough filing history to carry a rated average TCR.