Charter County of Wayne Michigan

500 Griswold, Detroit, MI 48226
Executive and legislative office combinations (NAICS 921140)

DART 3.17 165 recordable cases · 3,180 avg employees · 4,602,464 hours worked

This establishment vs. the industry

The DART rate at this establishment is near the industry median.

This establishment: 3.17
Industry median (Executive and legislative office combinations, n=113): 3.17

Reported injury and illness, 2024

Fatalities0 Days-away-from-work cases58 Restricted-duty / transferred cases15 Other recordable cases92 Total recordable cases165 Days lost to injury4,328

Injury rates (per 100 FTE-year, OSHA standard)

DART rate3.17 (days away + restricted/transferred) DAFW rate2.52 (days away from work only) Total recordable rate (TRIR)7.17 (all OSHA-recordable cases) Annual average employees3,180 Total hours worked4,602,464
What these numbers mean. An OSHA-recordable case is a work-related injury or illness that resulted in death, days away from work, restricted work, transfer to another job, medical treatment beyond first aid, loss of consciousness, or significant injury diagnosed by a physician. DART rate is the OSHA-standard incidence measure — calculate it as (cases with days away + restricted/transferred) × 200,000 / hours worked. The 200,000 hours normalizes to 100 full-time-equivalent workers over a year. National average DART across all industries is around 1.7; high-risk industries (skilled nursing, warehousing, courier) routinely exceed 5.

Source: OSHA ITA 300A Summary Data, calendar year 2024 filings (downloaded 2026-05-22).

OSHA Lookup · workplace-injury data from OSHA ITA 300A 2024 · About / methodology