J.H. Hart Company, Inc.

J.H. Hart Company, Inc

6600 Product Drive, Sterling Heights, MI 48312
Arborist services (NAICS 561730)

DART 24.36 10 recordable cases · 42 avg employees · 65,688 hours worked

This establishment vs. the industry

The DART rate at this establishment is about 6.0× the industry median.

This establishment: 24.36
Industry median (Tree Service, n=1515): 4.09

Reported injury and illness, 2024

Fatalities0 Days-away-from-work cases8 Restricted-duty / transferred cases0 Other recordable cases2 Total recordable cases10 Days lost to injury269

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

DART rate24.36 (days away + restricted/transferred) DAFW rate24.36 (days away from work only) Total recordable rate (TRIR)30.45 (all OSHA-recordable cases) Annual average employees42 Total hours worked65,688
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