Air-conditioning and warm air heating combination units manufacturing · Maryland
STULZ Air Technology Systems, Inc. FREDERICK
Frederick, MD · ~461 workers · 3 years of OSHA Injury Tracking Application data.
- F
- Failing Safety Record
- 6.8
- Avg TCR
- 3.3
- Industry avg
- 0
- Fatalities
The verdict
STULZ Air Technology Systems, Inc. FREDERICK runs at 205% of its industry's injury rate - far more dangerous than the typical Air-conditioning and warm air heating combination units manufacturing workplace, earning a grade F.
- F
- Failing Safety Record
- 6.8
- avg TCR · per 100 workers
- 3.3
- industry benchmark (BLS)
- 83
- recordable injuries tracked
Grade compares STULZ Air Technology Systems, Inc. FREDERICK's OSHA Total Case Rate of 6.8 to the Air-conditioning and warm air heating combination units manufacturing BLS benchmark of 3.3 (205% of benchmark) across 3 years of Form 300A filings (2016–2024). <a href="/methodology">See methodology</a> for reporting-limitation caveats.
Injury rate over time
STULZ Air Technology Systems, Inc. FREDERICK's yearly Total Case Rate, against the 3.3 industry benchmark.
Where STULZ Air Technology Systems, Inc. FREDERICK falls in its industry
485 Air-conditioning and warm air establishmentsSafer than 13% of graded establishments in this industry, whose median TCR is 2.6.
Narrower to Maryland alone (the establishments it most directly competes with for workers and contracts): ranked #6 safest of 6 Air-conditioning and warm air employers in Maryland.
Trend analysis for STULZ Air Technology Systems, Inc. FREDERICK
Between 2022 and 2024, STULZ Air Technology Systems, Inc. FREDERICK's Total Case Rate improved from 7.1 to 6.1 recordable injuries per 100 full-time workers, a 15% decrease across 2 years of OSHA reporting.
The safest year on record was 2024, at a TCR of 6.1, while 2022 saw the highest rate, at 7.1, a spread of 1.1 points between the best and worst reporting years. That's a comparatively narrow spread, suggesting a fairly consistent safety record across the 3 years with a usable rate on file, rather than one outlier year skewing the multi-year average.
Summed across those 3 reporting years, STULZ Air Technology Systems, Inc. FREDERICK recorded 83 total injuries and illnesses, with no fatalities reported in any of those years. Readers comparing establishments should weigh the 3-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
The 83 injuries, 2 illnesses shown on this page for STULZ Air Technology Systems, Inc. FREDERICK are sourced from its own 3 years of 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 333415 - Air-conditioning and warm air heating combination units manufacturing.
DART Rate, Transparent Calculation (2024)
What is the DART rate formula?
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.
23 DART incidents × 200,000 ÷ 1,023,670 hours worked = 4.49 DART
Methodology: 29 CFR 1904, OSHA Form 300A recordkeeping
Cross-Validating Context, Establishment vs Industry vs State
| Benchmark | TCR | Source |
|---|---|---|
| STULZ Air Technology Systems, Inc. FREDERICK (this establishment) | 6.77 | OSHA ITA Form 300A, 3-year avg |
| Coolers, refrigeration, manufacturing industry avg | 3.30 | BLS IIF, NAICS 333415 |
| Maryland state avg (all industries) | 4.70 | 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 STULZ Air Technology Systems, Inc. FREDERICK 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: 31 reportable incidents · 30 injuries, 1 illnesses, 0 fatalities - OSHA inspection records (case numbers)
- 2023: 27 reportable incidents · 26 injuries, 1 illnesses, 0 fatalities - OSHA inspection records (case numbers)
- 2022: 27 reportable incidents · 27 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 | 6.1 | 4.5 | 30 | 1 | 0 |
| 2023 | 7.1 | 5.8 | 26 | 1 | 0 |
| 2022 | 7.1 | 5.5 | 27 | 0 | 0 |
What this grade means for you
Use this grade as a relative read on STULZ Air Technology Systems, Inc. FREDERICK's reported OSHA injury record versus its Air-conditioning and warm air heating combination units manufacturing peers, not a verdict on whether any single site is safe today.
- At 205% of the Air-conditioning and warm air heating combination units manufacturing benchmark, STULZ Air Technology Systems, Inc. FREDERICK reports more injuries than typical peers, ask specifically how the employer is reducing them. Know your rights
- Judge this record against the wider Air-conditioning and warm air heating combination units 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 STULZ Air Technology Systems, Inc. FREDERICK's safety grade?
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Similar Employers
Matched by safety record across the industry, by workforce size within Maryland, and by nearby establishments in Frederick - a different peer set than the category browse links below.
Similar TCR (~6.8)
Similar size (~461 workers)
Read our methodology - how this data is sourced, computed, and verified.
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.