Warm Air Heating and Air-Conditioning Equipment and Supplies Merchant Wholesalers · Tennessee

TNCHA

Chattanooga, TN · ~23 workers · 4 years of OSHA Injury Tracking Application data.

F
Failing Safety Record
5.1
Avg TCR
2.2
Industry avg
0
Fatalities
Subscribe to safety-record updates (RSS)

The verdict

TNCHA runs at 230% of its industry's injury rate - far more dangerous than the typical Warm Air Heating and Air-Conditioning Equipment and Supplies Merchant Wholesalers workplace, earning a grade F.

TNCHA: 5.1 TCR = 230% of Warm Air Heating and Air-Conditioning Equipment and Supplies Merchant Wholesalers BLS 2.2 · 4y Form 300A (see methodology below)

TNCHA safety composite

TNCHA scores strongest on fatalities (safer than 50% of same-industry peers) and weakest on dart rate (safer than 15%), 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).

F

26/100

Percentile-weighted across 3 of 3 measures

Total Case Rate (TCR)
F 5.07 per 100 workers

Safer than 21% of industry peers

DART rate
F 5.07 per 100 workers

Safer than 15% 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%).

Rising injury rate

TNCHA: 0.0 → 10.1 TCR

Peak year 2023 @ 10.2 TCR · DART/TCR 1× in 2024

TNCHA's TCR rose 10.1 from 0.0 in 2016 to 10.1 in 2024. Peak filing year was 2023 at 10.2 TCR. In 2024, DART was 1× this establishment's average TCR (severity share of cases).

OSHA ITA Form 300A scorecard

Establishment book 423730 · Chattanooga, TN ABOVE-IND · SMALL

Grade F · TCR 5.1 · 230% of ind

  • DART 5.1 DART
  • RANK #9/11
  • PHOTO 4192-00051423-LVG
  • BOOK 4y book
  • INJ 8 inj
  • SIZE ~23 FTE

Nearest TCR peer: 4192-00051423-LVG (0.0 TCR gap)

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

TNCHA in the TCR neighbourhood

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

TCR

What this shows TNCHA averages 5.1 TCR (230% of the Warm Air Heating and Air-Conditioning Equipment and Supplies Merchant Wholesalers BLS benchmark).

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

TNCHA TCR series: 2016=0 · 2017=0 · 2023=10.2 · 2024=10.1 · BLS 2.2

Where TNCHA falls in its industry

290 Warm Air Heating and Air-Condi establishments

Safer than 21% of graded establishments in this industry, whose median TCR is 2.5.

More dangerous than peersSafer than peers

Narrower to Tennessee alone (the establishments it most directly competes with for workers and contracts): ranked #9 safest of 11 Warm Air Heating and Air-Condi employers in Tennessee.

TNCHA (23 employees, TCR 5.1) among 29 same-industry peers, split at the industry median of 45 employees and a TCR of 2.5 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 0100200300400 0510152025 Average employees Total Case Rate TNCHA
TNCHA (23 employees, TCR 5.1) among 29 same-industry peers, split at the industry median of 45 employees and a TCR of 2.5

TNCHA has fewer employees than the Warm Air Heating and Air-Conditioning Eq median and a higher injury rate than the industry's median TCR of 2.5. 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
2024 10.1 5.1 4 0 0
2023 10.2 0.0 4 0 0
2017 0.0 0.0 0 0 0
2016 0.0 0.0 0 0 0

OSHA ITA peer cross-reference

Establishment peer ledger

423730 · TN · Chattanooga

290 Warm Air Heating and Air-Conditioning Equipment and Supplies Merchant Wholesalers employers nationwide with a credible TCR · 10,743 rated employers in Tennessee with headcount on file · 695 employers in Chattanooga, TN · 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 4192-00051423-LVG 5.1 TCR
NAICS-TCR Johnstone Supply - PDC 5.1 TCR
NAICS-TCR DL Sales 5.0 TCR
NAICS-TCR Lansing Branch 5.0 TCR
STATE-SIZE Manchester DREMC 23 FTE
STATE-SIZE East Tennessee Mechanical Contractors 23 FTE
STATE-SIZE CDE - Metro Nashville District Energy System 23 FTE
STATE-SIZE Avenue Construction 23 FTE
CITY-NEAR CHATTANOOGA COKE 8,650 FTE
CITY-NEAR CHATTANOOGA FOOD 8,650 FTE
CITY-NEAR USXpress 7,385 FTE
CITY-NEAR Cardiology GB 6,606 FTE
NAT-TCR Adams & Brooks Inc. 5.1 TCR
NAT-TCR Rick Stone Masonry, Inc. 5.1 TCR
NAT-TCR Brookdale Norman 5.1 TCR
NAT-TCR Global Laser Enrichment 5.1 TCR
NAT-SIZE USA Washington 1908 L St Northwest 23 FTE
NAT-SIZE Columbus 2 23 FTE
NAT-SIZE Grand Junction Peterbilt, Inc 23 FTE
NAT-SIZE Bishopville 23 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: 2024, 2023, 2017, 2016. 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.