Refrigeration controls, residential and commercial-type, manufacturing · Iowa
NIS, LLC North Liberty
North Liberty, IA · ~134 workers · 3 years of OSHA Injury Tracking Application data.
- D
- Poor Safety Record
- 5.6
- Avg TCR
- 3.3
- Industry avg
- 0
- Fatalities
The verdict
NIS, LLC North Liberty runs at 171% of its industry's injury rate - more dangerous than the typical Refrigeration controls, residential and commercial-type, manufacturing workplace, earning a grade D.
- D
- Poor Safety Record
- 5.6
- avg TCR · per 100 workers
- 3.3
- industry benchmark (BLS)
- 18
- recordable injuries tracked
Grade compares NIS, LLC North Liberty's OSHA Total Case Rate of 5.6 to the Refrigeration controls, residential and commercial-type, manufacturing BLS benchmark of 3.3 (171% 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
NIS, LLC North Liberty's yearly Total Case Rate, against the 3.3 industry benchmark.
Where NIS, LLC North Liberty falls in its industry
68 Refrigeration controls, reside establishmentsSafer than 10% of graded establishments in this industry, whose median TCR is 1.3.
Trend analysis for NIS, LLC North Liberty
Between 2017 and 2021, NIS, LLC North Liberty's Total Case Rate worsened from 2.2 to 12.5 recordable injuries per 100 full-time workers, a 461% increase across 4 years of OSHA reporting.
The safest year on record was 2017, at a TCR of 2.2, while 2021 saw the highest rate, at 12.5, a spread of 10.2 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 3 reporting years, NIS, LLC North Liberty recorded 18 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 18 injuries shown on this page for NIS, LLC North Liberty 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 334512 - Refrigeration controls, residential and commercial-type, manufacturing.
DART Rate, Transparent Calculation (2021)
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.
11 DART incidents × 200,000 ÷ 176,568 hours worked = 12.46 DART
Methodology: 29 CFR 1904, OSHA Form 300A recordkeeping
Cross-Validating Context, Establishment vs Industry vs State
| Benchmark | TCR | Source |
|---|---|---|
| NIS, LLC North Liberty (this establishment) | 5.64 | OSHA ITA Form 300A, 3-year avg |
| Heating and cooling system controls, residential and commercial, manufacturing industry avg | 3.30 | BLS IIF, NAICS 334512 |
| Iowa state avg (all industries) | 5.33 | 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 NIS, LLC North Liberty 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.
- 2021: 11 reportable incidents · 11 injuries, 0 illnesses, 0 fatalities - OSHA inspection records (case numbers)
- 2020: 3 reportable incidents · 3 injuries, 0 illnesses, 0 fatalities - OSHA inspection records (case numbers)
- 2017: 4 reportable incidents · 4 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 |
|---|---|---|---|---|---|
| 2021 | 12.5 | 12.5 | 11 | 0 | 0 |
| 2020 | 2.3 | 2.3 | 3 | 0 | 0 |
| 2017 | 2.2 | 2.2 | 4 | 0 | 0 |
What this grade means for you
Use this grade as a relative read on NIS, LLC North Liberty's reported OSHA injury record versus its Refrigeration controls, residential and commercial-type, manufacturing peers, not a verdict on whether any single site is safe today.
- At 171% of the Refrigeration controls, residential and commercial-type, manufacturing benchmark, NIS, LLC North Liberty reports more injuries than typical peers, ask specifically how the employer is reducing them. Know your rights
- Judge this record against the wider Refrigeration controls, residential and commercial-type, 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 NIS, LLC North Liberty's safety grade?
How many injuries has NIS, LLC North Liberty reported?
Similar Employers
Matched by safety record across the industry, by workforce size within Iowa, and by nearby establishments in North Liberty - a different peer set than the category browse links below.
Similar TCR (~5.6)
Similar size (~134 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.