HaulerCheck · https://haulercheck.com/carrier/4426827-mk-21-transport-service-corp/ · Checked 2026-10-20 09:16 UTC · Census and inspections Oct 19, 2026 · Authority and insurance: Last known · FMCSA snapshot May 14, 2026
MK 21 TRANSPORT SERVICE CORP
Do not book until these are resolved · 1 signal
How risk signals workAt least one fact in the FMCSA record should stop a booking until it is cleared up. Confirm the current record on Motus first; it is not a finding of wrongdoing. Authority and insurance are last known from May 14, 2026.
- Operating authority is inactive (last known)Without active authority the company may not haul or broker interstate freight for hire.
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, (786) 394-7174, not a number from an email or load board.
- Check that the MC number you were given is MC1741269.
- Ask the insurer for a certificate of insurance naming you as holder, with cargo coverage that fits your load.
Insurance on file
No insurance filings were found in the public FMCSA data for this carrier.
Insurance that ended since 2024 · 1 policy
| Ended | Type | Insurer | Effective | How it ended |
|---|---|---|---|---|
| Mar 15, 2026 | Liability (BI&PD) MC1741269 | BROOKLYN SPECIALTY INSURANCE COMPANY RRG, INC Policy BOX-BIP-75-082025 | Aug 13, 2025 | Cancelled |
"Replaced" means a new filing took over the day the old one ended. "Cancelled" means the insurer or the company ended the policy; if no replacement was filed in time, the company was uninsured with FMCSA in between.
Roadside inspections Oct 19, 2024 – Oct 19, 2026
0 of 3 · Florida avg 26.0%
4 of 4 · Florida avg 10.2%
Where it was inspected 4 states and provinces, 24 months
- KS 1 25.0%
- SD 1 25.0%
- MN 1 25.0%
- CO 1 25.0%
Vehicles seen at inspections different VINs, 24 months
Power units: 1
1 straight trucks
International 2
2 power units declared on the MCS-150. Inspections see only part of a fleet, so fewer here is normal; many more can mean the registration is out of date.
Shippers named on inspection reports 24 months
Watson 2
As written by roadside inspectors, who note the shipper on the bill of lading. Only names that appear on at least three different carriers' reports are shown, so private individuals are never listed. A shipper on a report is not a reference.
4 most recent inspections
| Date | State | Level | Violations | Out of service |
|---|---|---|---|---|
| Dec 21, 2025 | CO | 2 | 20 | Yes |
| Nov 25, 2025 | MN | 1 | 5 | Yes |
| Nov 23, 2025 | SD | 3 | 6 | Yes |
| Nov 5, 2025 | KS | 2 | 16 | Yes |
How these rates are calculated
Period: Oct 19, 2024 – Oct 19, 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 Florida average covers 69,904 vehicle and 132,306 driver inspections of all Florida-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
27 violations counted in FMCSA's Safety Measurement System (SMS), 4 of them serious enough to put the driver or vehicle out of service.
Why is this different from the 47 violations above?
The inspections section's number counts every violation written on the inspection reports in our Oct 19, 2024 – Oct 19, 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 | Florida share |
|---|---|---|---|---|
| Hours-of-Service Compliance | 18 | 1 | 66.7% | 20.7% |
| Vehicle Maintenance | 6 | 0 | 22.2% | 61.8% |
| Driver Fitness | 3 | 3 | 11.1% | 5.1% |
10 most frequent violations
| Violation | Times | Out of service |
|---|---|---|
| Medical (Certificate) - Operating a property-carrying vehicle without a valid medical certificate in possession or on file with the state drivers licensing agency Medical Certificate · Driver Fitness · code 39141APC | 3 | 3 |
| Operating a CMV without documentation of a periodic inspection Inspection Reports · Vehicle Maintenance · code 39617CPI | 3 | 0 |
| HOS (Property) - No driver may make a false report in connection with a duty status. Explain False Log · Hours-of-Service Compliance · code 3958EHOSPD | 2 | 0 |
| HOS (Property) - Driving more than 11 hours following 10 consecutive hours off duty during the current 8 consecutive day period. Date and Time Hours · Hours-of-Service Compliance · code 3953A1HOSPD | 2 | 0 |
| HOS (Property) - Driving beyond the 14 hour after coming on duty following 10 consecutive hours off duty during the current 8 consecutive day period. Date and Tim Hours · Hours-of-Service Compliance · code 3953A2HOSPD | 2 | 0 |
| Driving beyond 8 hour driving limit since the end of the last on duty off duty or sleeper period of at least 30 minutes Hours · Hours-of-Service Compliance · code 3953A3II | 2 | 0 |
| HOS (ELD) - ELD Form and Manner Other Log/Form & Manner · Hours-of-Service Compliance · code 39524 | 2 | 0 |
| HOS (Property) - Driver driving beyond the 14 hour after coming on duty following 10 consecutive hours off duty at the time of inspection. Time Hours · Hours-of-Service Compliance · code 3953A2HOSPDIT | 1 | 1 |
| HOS (ELD) - In-Vehicle Information - No user's manual for the driver describing how to operate the ELD. (May be electronic) EOBR Related · Hours-of-Service Compliance · code 39522H1ELDNUM | 1 | 0 |
| HOS (ELD) Driver failing to have instruction sheet describing the data transfer mechanisms supported by the ELD and step-by-step instructions for the driver to pr EOBR Related · Hours-of-Service Compliance · code 39522H2ELDNISDT | 1 | 0 |
Source: FMCSA SMS violation file, inspections in the last 24 months, published Oct 19, 2026. "Share" is this company's mix of violations; the Florida column is the mix across all Florida-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 19, 2024 – Oct 19, 2026
No reportable crashes in this period.
Company details FMCSA census · Oct 19, 2026
| USDOT number | 4426827 |
|---|---|
| MC / docket | MC1741269 |
| Legal name | MK 21 TRANSPORT SERVICE CORP |
| Operation | Interstate |
| Business type | — |
| Power units | 2 |
| Drivers | 2 |
| Annual mileage | 1 (2024) |
| Hazmat | No |
| Safety rating | Not rated (no compliance review on record) |
| USDOT number added | Jun 19, 2025 · 1 year ago |
| Last MCS-150 update | Oct 1, 2025 |
| Email domain on file | @gmail.com (free email service) |
Equipment as declared on the MCS-150
| Owned | Term-leased | |
|---|---|---|
| Straight trucks | 2 | 0 |
Term-leased equipment usually belongs to owner-operators driving under this company's authority.
Cargo carried
General Freight
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 MK 21 TRANSPORT SERVICE CORP
What does MK 21 TRANSPORT SERVICE CORP's operating authority allow?
FMCSA records show no active operating authority for MK 21 TRANSPORT SERVICE CORP (MC1741269), so it may not haul regulated interstate freight for hire or broker loads under these dockets.
Which information about MK 21 TRANSPORT SERVICE CORP is old or missing?
Operating authority is the last known status from the FMCSA snapshot of May 14, 2026, not a current check. No insurance filings were found in the public data. There are too few vehicle inspections in the last 24 months to judge the out-of-service rate. FMCSA has not issued a safety rating, which means no compliance review is on record, not that the carrier is unsafe.
What should I verify before booking MK 21 TRANSPORT SERVICE CORP?
Confirm the authority and insurance on the Motus record for USDOT 4426827. Call the company back on the phone number on file, (786) 394-7174, not a number from an email or load board message. Check that the MC number the dispatcher gave you matches MC1741269, and ask the insurer for a certificate of insurance naming you as holder, with cargo coverage that fits your load.
Other trucking companies in Miami, FL →
Company details from the FMCSA Company Census File (Oct 19, 2026). Inspections and crashes from FMCSA MCMIS files. About our data · Report an error on this page (how corrections work).
Page generated 2026-10-20 09:16 UTC.