31-W INSULATION COMPANY INCORPORATED

USDOT 187106 · GOODLETSVILLE, TN

Not for-hireOperating 52 yrsPower units 434Drivers 434Inspections (24 mo) 42
33
Low
HaulReport estimate · highest estimated percentile
Vehicle Maintenance is this carrier's highest reconstructed BASIC percentile at the 33.1th percentile among 19,381 safety-event peers. Across 3 rated categories, 3 are estimated Low. Higher percentile = more inspection-violation activity recorded relative to peers. An independent estimate, not an official FMCSA or CSA score.
Estimated from public FMCSA data · updated 2026-06-07 · How we calculate this

31-W Insulation Company Incorporated is a private property carrier based in Goodletsville, Tennessee, operating 434 power units and drivers since 1974. The carrier reported 42 driver inspections with a 14.3% out-of-service rate and 32 vehicle inspections with an 18.8% out-of-service rate, compared to the snapshot benchmark of 5.2% for drivers and 21.2% for vehicles. HaulReport-estimated percentiles across controlled substances (28.2), hours-of-service compliance (15.5), and vehicle maintenance (33.1) all fall in the low band, an independent estimate, not an official FMCSA or CSA score.

HaulReport interpretation — automatically generated from the public FMCSA data below and our percentile estimates, and checked against those source figures.

Estimated BASIC percentiles

Controlled Substances / AlcoholLow
28.2 pctl · CI 2333
BASIC measure: 0.27Insp. w/ violation: 1Peer group: 7,862
Hours-of-Service ComplianceLow
15.5 pctl · CI 1121
BASIC measure: 0.10Insp. w/ violation: 42Peer group: 20,717
Vehicle MaintenanceLow
33.1 pctl · CI 2838
BASIC measure: 2.87Insp. w/ violation: 32Peer group: 19,381

Out-of-service rates

Vehicle OOS18.8%below the 21.2% snapshot benchmark · 32 inspections
Driver OOS14.3%above the 5.2% snapshot benchmark · 42 inspections

Out-of-service rate = inspections resulting in an out-of-service order ÷ inspections. The benchmark is the inspection-weighted rate across this FMCSA snapshot — not an official national average. Rates are shown only with at least 5 inspections.

MCS-150 biennial update

Due June 2026
Next biennial update dueJune 2026
Recurring update monthJune, even-numbered years
Last MCS-150 update on fileFebruary 5, 2024

FMCSA sets each carrier's biennial update month from the last two digits of the USDOT number (last digit → month, second-to-last digit → odd/even year) — it is required even when nothing has changed. This is a schedule derived from the public rule, not a compliance determination. Verify and file on FMCSA · Deadline calculator

Carrier facts (public FMCSA data)
Verbatim public facts from FMCSA datasets. Only the percentile/band/confidence figures above are HaulReport reconstructions — not official FMCSA or CSA scores.
USDOT number187106
Legal name31-W INSULATION COMPANY INCORPORATED
LocationGOODLETSVILLE, TN
Operating classificationNot for-hire (per FMCSA census)
Power units (fleet size)434
Drivers434
Reported annual mileage1,200,000 (reported for 2021) · figure may be outdated
FMCSA registered1974 (~52 years)
Last MCS-150 updateFebruary 5, 2024
Next MCS-150 update dueJune 2026
Inspections (trailing 24 mo)42
Published BASIC measures3

FMCSA data as of 2026-06-06 · Last synced 2026-06-07 · Method: how these percentiles are reconstructed · Canonical: https://haulreport.com/carrier/187106/