Agricultural organizations (except youth farming organizations, farm granges) · California

SEMA Diamond Bar

Diamond Bar, CA · ~155 workers · 2 years of OSHA Injury Tracking Application data.

C
Average Safety Record
1.9
Avg TCR
2.1
Industry avg
0
Fatalities
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The verdict

SEMA Diamond Bar runs at 89% of its industry's injury rate - about level with the typical Agricultural organizations (except youth farming organizations, farm granges) workplace, earning a grade C.

SEMA Diamond Bar: 1.9 TCR = 89% of Agricultural organizations (except youth farming organizations, farm granges) BLS 2.1 · 2y Form 300A (see methodology below)

SEMA Diamond Bar safety composite

SEMA Diamond Bar scores strongest on dart rate (safer than 78% of same-industry peers) and weakest on fatalities (safer than 50%), blended into one 0-100 breakdown against same-industry peers. A missing measure drops out and redistributes its weight rather than deflating the score. This is a per-dimension breakdown, distinct from the single letter grade above it (which weights TCR alone against the BLS industry benchmark).

C

67/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
C 1.86 per 100 workers

Safer than 68% of industry peers

DART rate
B 0 per 100 workers

Safer than 78% of industry peers

Fatalities
D 0

Safer than 50% of industry peers

Benchmarked live against every credibly-rated employer in the same NAICS industry code in the current OSHA extract (a segment must have at least 8 rated peers to benchmark). Not a legal or compliance determination; PlainSafetyScore's own weighting (TCR 40%, DART 35%, fatalities 25%).

SEMA Diamond Bar held a steady TCR band

SEMA Diamond Bar's TCR held near 0.1 from 1.9 in 2018 to 1.8 in 2019. Peak filing year was 2018 at 1.9 TCR. In 2019, DART was 0× this establishment's average TCR (severity share of cases).

2018=1.9 · 2019=1.8

OSHA ITA Form 300A scorecard

Establishment book 813910 · Diamond Bar, CA AT/BELOW-IND · MID

Grade C · TCR 1.9 · 89% of ind

  • DART 0.0 DART
  • RANK #6/10
  • PHOTO Meijer 109
  • BOOK 2y book
  • INJ 4 inj
  • SIZE ~155 FTE

Nearest TCR peer: Meijer 109 (0.0 TCR gap)

Read with this employer → · Industry book → · California employers → · Look up another →

SEMA Diamond Bar in the TCR neighbourhood

Average Total Case Rate among this establishment and nearest same-industry peers

TCR

What this shows SEMA Diamond Bar averages 1.9 TCR (89% of the Agricultural organizations (except youth farming organizations, farm granges) BLS benchmark).

Source U.S. Department of Labor, OSHA Injury Tracking Application (Form 300A) As of 2026-08-25

SEMA Diamond Bar TCR series: 2018=1.9 · 2019=1.8 · BLS 2.1

Where SEMA Diamond Bar falls in its industry

50 Agricultural organizations (ex establishments

Safer than 68% of graded establishments in this industry, whose median TCR is 3.9.

More dangerous than peersSafer than peers

Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #6 safest of 10 Agricultural organizations (ex employers in California.

SEMA Diamond Bar (155 employees, TCR 1.9) among 29 same-industry peers, split at the industry median of 47 employees and a TCR of 3.9 2×2 strategic matrix plotting 30 entities by Average employees (X) and Total Case Rate (Y), with a crosshair dividing the plot into four quadrants. Larger & higher-riskSmaller & higher-riskLarger & saferSmaller & safer than peers 05001,0001,500 05101520 Average employees Total Case Rate SEMA Diamond Bar
SEMA Diamond Bar (155 employees, TCR 1.9) among 29 same-industry peers, split at the industry median of 47 employees and a TCR of 3.9

SEMA Diamond Bar has more employees than the Agricultural organizations (except youth median and a lower injury rate than the industry's median TCR of 3.9. Workforce size and injury rate do not always move together within the same industry -- some of its smaller peers run higher rates than its larger ones, and vice versa.

Year-by-Year Safety Data

Year TCR DART Injuries Illnesses Fatalities
2019 1.8 0.0 3 0 0
2018 1.9 1.3 1 2 0

OSHA ITA peer cross-reference

Establishment peer ledger

813910 · CA · Diamond Bar

50 Agricultural organizations (except youth farming organizations, farm granges) employers nationwide with a credible TCR · 51,834 rated employers in California with headcount on file · 27 employers in Diamond Bar, CA · 4 cross-state NAT-TCR peers · 4 cross-state NAT-SIZE peers. Closest matches by relationship code are listed below.

Rel Establishment Metric
NAICS-TCR Meijer 109 1.9 TCR
NAICS-TCR Iowa Farm Bureau Federation 1.8 TCR
NAICS-TCR AEU 1.7 TCR
NAICS-TCR Hogans Cut Rate Store, INC. 2.0 TCR
STATE-SIZE T&A - Oxnard - Harvest 155 FTE
STATE-SIZE Treehouse California Almonds 155 FTE
STATE-SIZE ARTURO GODINEZ 155 FTE
STATE-SIZE BEACH CITIES CONSTRUCT/FLD SRVS - 1 155 FTE
CITY-NEAR California Department of Transportation Facility 1 2,621 FTE
CITY-NEAR Niagara Bottling, LLC - Corporate 1,424 FTE
CITY-NEAR Ono-CORP 961 FTE
CITY-NEAR South Coast Air Quality Management District 798 FTE
NAT-TCR Medora Environmental dba Medora Corporation / Medora Transport 1.9 TCR
NAT-TCR Arc Electric Construction Co., Inc. 1.9 TCR
NAT-TCR Richmond, IL 1.9 TCR
NAT-TCR LignoTech USA Inc. Rothschild 1.9 TCR
NAT-SIZE Heritage Bag - Villa Rica 155 FTE
NAT-SIZE Silverlake Facility 155 FTE
NAT-SIZE Wadsworth Glen Health Care and Rehabilitation Center 155 FTE
NAT-SIZE Parkway Pavilion 155 FTE

Rel codes: NAICS-TCR · STATE-SIZE · CITY-NEAR · NAT-TCR/NAT-SIZE cross-state. Read with this employer →

Data Source: OSHA Injury Tracking Application (ITA), mandatory establishment-level injury/illness reports. Grades compare employer Total Case Rate (TCR) to BLS IIF industry benchmarks. Data covers years reported by this establishment: 2019, 2018. This is publicly available government data - not a legal determination of workplace conditions.

Read our methodology - how this data is sourced, computed, and verified.

Data sourced from official public datasets. See our methodology for details.