HaulerCheck · https://haulercheck.com/carrier/496152-h-i-stone-son-inc/ · Checked 2026-10-19 15:02 UTC · Census and inspections Oct 18, 2026 · Authority and insurance: Last known · FMCSA snapshot May 14, 2026
H I STONE & SON INC
Review before booking · 1 signal
How risk signals workFacts from the FMCSA record that call for a closer look. They are not a finding of wrongdoing. Authority and insurance are last known from May 14, 2026.
- Vehicle out-of-service rate well above the state average41.2% vs Connecticut average 23.6%.
No cargo cover filed with FMCSA
Not a live check. FMCSA has not published a Motus record for this carrier, so authority and insurance show the last known status from May 14, 2026. Confirm on Motus ↗ before booking.
What to verify next
- Confirm authority and insurance on the official Motus record ↗: our copy is the last known status from May 14, 2026. Safety record: SAFER ↗.
- Call back on the number on file, (203) 264-8656, not a number from an email or load board.
- Check that the MC number you were given is MC462647.
- Ask the insurer for a certificate of insurance naming you as holder, with cargo coverage that fits your load.
Insurance on file
Liability (BI&PD) pays for injury and damage to other people and property; it does not cover the freight. Cargo insurance covers the freight. FMCSA only requires cargo filings from household goods carriers and freight forwarders, so most carriers file none: ask for a cargo certificate that fits your load. No cargo cover filed with FMCSA.
| Type | Docket | Layer | Insurer | Coverage | Effective | Status |
|---|---|---|---|---|---|---|
| Liability (BI&PD) | MC462647 | Primary | NATIONAL UNION FIRE INS. CO. OF PITSBGH. PA Policy 2446775 · 91X | $2,000,000 | Jun 1, 2024 | Active |
Source: Last known · FMCSA snapshot May 14, 2026. Identical filings repeated in the FMCSA data are shown once; a filing listed under two dockets is one policy, not extra coverage. Coverage is the maximum amount filed with FMCSA, not the full policy.
Last known filings. Insurance for this carrier comes from the FMCSA snapshot of May 14, 2026. Policies may have been cancelled or replaced since. Confirm current filings: Motus record ↗ and ask the insurer for a certificate naming you as holder.
Roadside inspections Oct 18, 2024 – Oct 18, 2026
7 of 17 · Connecticut avg 23.6%
3 of 31 · Connecticut avg 10.1%
10 most recent inspections
| Date | State | Level | Violations | Out of service |
|---|---|---|---|---|
| Aug 28, 2026 | MA | 3 | 2 | No |
| Aug 22, 2026 | NJ | 3 | 1 | No |
| Aug 17, 2026 | NY | 3 | 0 | No |
| Jul 10, 2026 | CT | 1 | 8 | Yes |
| Jul 9, 2026 | CT | 3 | 1 | No |
| Jun 9, 2026 | CT | 1 | 6 | Yes |
| May 20, 2026 | CT | 1 | 0 | No |
| Feb 24, 2026 | NY | 2 | 0 | No |
| Jan 23, 2026 | CT | 3 | 1 | No |
| Jan 21, 2026 | CT | 3 | 1 | No |
How these rates are calculated
Period: Oct 18, 2024 – Oct 18, 2026. Vehicle rate = vehicle inspections with a vehicle out-of-service order ÷ vehicle inspections (levels 1, 2, 5 and 6). Driver rate uses levels 1, 2, 3 and 6. The Connecticut average covers 8,567 vehicle and 13,655 driver inspections of all Connecticut-based carriers in this period. It mixes every type of operation, so compare with care; rates based on a handful of inspections say little. FMCSA's own SMS measures are weighted differently: SMS profile ↗ · SAFER snapshot ↗
Violations in FMCSA's SMS last 24 months
60 violations counted in FMCSA's Safety Measurement System (SMS), 17 of them serious enough to put the driver or vehicle out of service.
Why is this different from the 87 violations above?
The inspections section's number counts every violation written on the inspection reports in our Oct 18, 2024 – Oct 18, 2026 window. The SMS count comes from FMCSA's own monthly SMS snapshot, which uses its own 24-month window and only the violations it scores. Both are FMCSA figures; they measure different things.
| Category (FMCSA BASIC) | Violations | Out of service | Share | Connecticut share |
|---|---|---|---|---|
| Vehicle Maintenance | 44 | 12 | 73.3% | 68.4% |
| Unsafe Driving | 10 | 0 | 16.7% | 13.7% |
| Driver Fitness | 6 | 5 | 10.0% | 7.5% |
10 most frequent violations
| Violation | Times | Out of service |
|---|---|---|
| Lighting - License plate lamp inoperative Clearance Identification Lamps/Other · Vehicle Maintenance · code 3939ALLPL | 3 | 0 |
| License (CDL) - Operate a CMV and does not possess a valid CDL License-related: High · Driver Fitness · code 38323A2LCDLN | 2 | 2 |
| Brake - Defective brake(s) are equal to or greater than 20% of the service brakes on the vehicle/combination Brake Out Of Service · Vehicle Maintenance · code 3963A1BOS | 2 | 2 |
| Cargo - Vehicle components or dunnage not secured General Securement · Vehicle Maintenance · code 3929A2C | 2 | 2 |
| Driver - Failed to use seat belt while operating a CMV Seat Belt · Unsafe Driving · code 39216D | 2 | 0 |
| State/Local Laws - Speeding 11-14 miles per hour over the speed limit Speeding 3 · Unsafe Driving · code 3922SLLS3 | 2 | 0 |
| State/Local Laws - Speeding 15 or more miles per hour over the speed limit Speeding 4 · Unsafe Driving · code 3922SLLS4 | 2 | 0 |
| Brake - Audible air leak from a brake chamber Brakes All Others · Vehicle Maintenance · code 3963A1BALAC | 2 | 0 |
| Lighting - Side marker lamp(s) inoperative Clearance Identification Lamps/Other · Vehicle Maintenance · code 3939ALSML | 2 | 0 |
| Emergency Equipment - Fire Extinguishers - no fire extinguisher present or not properly rated. Emergency Equipment · Vehicle Maintenance · code 39395A1 | 2 | 0 |
Source: FMCSA SMS violation file, inspections in the last 24 months, published Oct 18, 2026. "Share" is this company's mix of violations; the Connecticut column is the mix across all Connecticut-based carriers, so you can see which kinds of problems stand out. A high count partly reflects fleet size and how often trucks are inspected.
Crashes Oct 18, 2024 – Oct 18, 2026
4 most recent crashes
| Date | Location | Fatalities | Injuries |
|---|---|---|---|
| Jan 22, 2026 | Southbury, CT | 0 | 0 |
| Dec 26, 2025 | Southbury, CT | 0 | 1 |
| Dec 4, 2025 | Hartford, CT | 0 | 0 |
| Jul 3, 2025 | Oxford, CT | 0 | 0 |
Reportable crashes do not imply the carrier was at fault.
Company details FMCSA census · Oct 18, 2026
| USDOT number | 496152 |
|---|---|
| MC / docket | MC462647 |
| Legal name | H I STONE & SON INC |
| Operation | Interstate |
| Business type | Corporation |
| Power units | 61 |
| Drivers | 63 |
| Annual mileage | 2,324,734 (2024) |
| Hazmat | Yes |
| Safety rating | Satisfactory (Apr 9, 2007) |
| USDOT number added | Aug 27, 1992 · 34 years ago |
| Last MCS-150 update | Feb 13, 2025 |
Cargo carried
General FreightLogs, Poles, Beams, LumberBuilding MaterialsMachinery, Large ObjectsLiquids/GasesCoal/CokeGarbage/RefuseConstructionOtherSludge
Change history
No changes to name, contact details, authority or insurance since we started tracking on Oct 18, 2026. We compare every company's FMCSA record each day.
to see it on your watchlist when something changes.
Questions about H I STONE & SON INC
What does H I STONE & SON INC's operating authority allow?
MC462647: Common carrier (may haul regulated property for hire for the general public).
Which information about H I STONE & SON INC is old or missing?
Operating authority is the last known status from the FMCSA snapshot of May 14, 2026, not a current check. Insurance filings are from the same May 14, 2026 snapshot.
What should I verify before booking H I STONE & SON INC?
Confirm the authority and insurance on the Motus record for USDOT 496152. Call the company back on the phone number on file, (203) 264-8656, not a number from an email or load board message. Check that the MC number the dispatcher gave you matches MC462647, and ask the insurer for a certificate of insurance naming you as holder, with cargo coverage that fits your load.
Other trucking companies in Southbury, CT →
Company details from the FMCSA Company Census File (Oct 18, 2026). Inspections and crashes from FMCSA MCMIS files. About our data · Report an error on this page (how corrections work).
Page generated 2026-10-19 15:02 UTC.