Electrical signs manufacturing · California
National Sign & Marketing Corporation
Chino, CA · ~62 workers · 7 years of OSHA Injury Tracking Application data.
- C
- Average Safety Record
- 3.9
- Avg TCR
- 3.3
- Industry avg
- 0
- Fatalities
The verdict
National Sign & Marketing Corporation runs at 118% of its industry's injury rate - about level with the typical Electrical signs manufacturing workplace, earning a grade C.
- C
- Average Safety Record
- 3.9
- avg TCR · per 100 workers
- 3.3
- industry benchmark (BLS)
- 16
- recordable injuries tracked
Grade compares National Sign & Marketing Corporation's OSHA Total Case Rate to the BLS industry benchmark across 7 years of Form 300A filings (2016–2024). This reflects reported recordable injuries, not an independent safety inspection -- underreporting is a known limitation of employer self-recordkeeping.
Injury rate over time
National Sign & Marketing Corporation's yearly Total Case Rate, against the 3.3 industry benchmark.
Where National Sign & Marketing Corporation falls in its industry
448 Electrical signs manufacturing establishmentsSafer than 42% of graded establishments in this industry, whose median TCR is 3.3.
Narrower to California alone (the establishments it most directly competes with for workers and contracts): ranked #20 safest of 32 Electrical signs manufacturing employers in California.
National Sign & Marketing Corporation has an average TCR of 3.9, which is 118% of the industry average (3.3) for Electrical signs manufacturing. This is worse than average.
The letter grade is a transparent derived index PlainSafetyScore computes from public OSHA ITA and BLS benchmark data, not an official OSHA rating or safety certification. Full formula and thresholds: Methodology.
Trend analysis for National Sign & Marketing Corporation
Between 2018 and 2024, National Sign & Marketing Corporation's Total Case Rate held roughly steady from 0.0 to 9.3 recordable injuries per 100 full-time workers, a 0% change across 6 years of OSHA reporting.
The safest year on record was 2018, at a TCR of 0.0, while 2024 saw the highest rate, at 9.3, a spread of 9.3 points between the best and worst reporting years. That's a wide swing relative to the establishment's overall rate, worth checking the year-by-year table below for whether a single severe year is driving the average, rather than a sustained trend.
Summed across those 7 reporting years, National Sign & Marketing Corporation recorded 16 total injuries and illnesses, with no fatalities reported in any of those years. Readers comparing establishments should weigh the 7-year trend above alongside establishment size, since a larger workforce naturally accumulates more raw incidents even at a lower per-100-worker rate.
Verify This Employer with OSHA
All injury, illness, and fatality figures on this page are sourced from National Sign & Marketing Corporation's own mandatory OSHA Form 300A summaries. Cross-check the underlying establishment record directly against the federal source, name, NAICS classification, recordable case totals, and inspection history are all searchable on OSHA's Establishment-Specific Injury and Illness Data system.
Verify on OSHA Establishment SearchSource: U.S. Department of Labor, OSHA Establishment-Specific Injury and Illness Data. NAICS 339950 - Electrical signs manufacturing.
DART Rate, Transparent Calculation (2024)
DART (Days Away, Restricted, or Transferred) is computed by OSHA as incidents × 200,000 ÷ hours worked. The 200,000-hour denominator equals roughly 100 full-time workers, which lets establishments of very different sizes be compared directly.
2 DART incidents × 200,000 ÷ 107,180 hours worked = 3.73 DART
Methodology: 29 CFR 1904, OSHA Form 300A recordkeeping
Cross-Validating Context, Establishment vs Industry vs State
| Benchmark | TCR | Source |
|---|---|---|
| National Sign & Marketing Corporation (this establishment) | 3.89 | OSHA ITA Form 300A, 7-year avg |
| Electrical signs manufacturing industry avg | 3.30 | BLS IIF, NAICS 339950 |
| California state avg (all industries) | 5.64 | OSHA ITA, state-level rollup |
Industry benchmarks: Bureau of Labor Statistics, Injuries, Illnesses, and Fatalities (IIF) program
Reportable Incident Timeline
Year-by-year reportable incidents (recordable injuries + illnesses + fatalities) submitted by National Sign & Marketing Corporation to OSHA's Injury Tracking Application. Each row anchors to OSHA's inspection records search where you can pull the underlying inspection case numbers and citations for that establishment-year.
- 2024: 5 reportable incidents · 5 injuries, 0 illnesses, 0 fatalities - OSHA inspection records (case numbers)
- 2023: 5 reportable incidents · 5 injuries, 0 illnesses, 0 fatalities - OSHA inspection records (case numbers)
- 2022: 1 reportable incidents · 1 injuries, 0 illnesses, 0 fatalities - OSHA inspection records (case numbers)
- 2021: 4 reportable incidents · 4 injuries, 0 illnesses, 0 fatalities - OSHA inspection records (case numbers)
- 2020: 1 reportable incidents · 1 injuries, 0 illnesses, 0 fatalities - OSHA inspection records (case numbers)
- 2019: 0 reportable incidents · 0 injuries, 0 illnesses, 0 fatalities - OSHA inspection records (case numbers)
- 2018: 0 reportable incidents · 0 injuries, 0 illnesses, 0 fatalities - OSHA inspection records (case numbers)
Source: OSHA Inspection Information System (IMIS) - inspection case-number records
Year-by-Year Safety Data
| Year | TCR | DART | Injuries | Illnesses | Fatalities |
|---|---|---|---|---|---|
| 2024 | 9.3 | 3.7 | 5 | 0 | 0 |
| 2023 | 7.3 | 7.3 | 5 | 0 | 0 |
| 2022 | 1.7 | 1.7 | 1 | 0 | 0 |
| 2021 | 7.2 | 7.2 | 4 | 0 | 0 |
| 2020 | 1.7 | 1.7 | 1 | 0 | 0 |
| 2019 | 0.0 | 0.0 | 0 | 0 | 0 |
| 2018 | 0.0 | 0.0 | 0 | 0 | 0 |
What this grade means for you
Use this grade as a relative read on National Sign & Marketing Corporation's reported OSHA injury record versus its Electrical signs manufacturing peers, not a verdict on whether any single site is safe today.
- At 118% of the Electrical signs manufacturing benchmark, National Sign & Marketing Corporation reports more injuries than typical peers, ask specifically how the employer is reducing them. Know your rights
- Judge this record against the wider Electrical signs manufacturing sector, where injury rates vary widely, before comparing it in isolation. See the industry
- Grades reflect 2016–2024 filings; check the latest establishment record straight from OSHA, or look up a different employer. Look up another
Safety grades reflect employers' self-reported OSHA Form 300A filings from 2016 to 2024 and can lag current conditions. A grade is not a guarantee that any specific workplace is safe or unsafe today. See our methodology and disclaimer.
Frequently Asked Questions
What is National Sign & Marketing Corporation's safety grade?
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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.