How to Vet a Flatbed Carrier: Authority, Safety Scores, and the Right Questions

Vet the company taking possession

Flatbed freight is exposed, often high value, and dependent on securement skill. A driver who does not understand blocking, chain angles, edge protection, or tarp handling can turn a good load into a claim. A carrier with $100,000 cargo coverage is a $300,000 gap on a $400,000 machine.

Use FMCSA SAFER at safer.fmcsa.dot.gov with the MC or USDOT number. Authority should read “Authorized for Property.” Confirm the legal name, address, insurance filing, and telephone number match the carrier on the rate confirmation. The commonly cited property-carrier public-liability minimum is $750,000; cargo coverage is separate. SAFER insurance data can lag about 30 days, so call the insurer.

Read safety data with context

Review driver OOS rate against an approximate 5.5% national average, vehicle OOS against approximately 22%, and crashes against roughly 3.5 per 100 vehicles per year. A crash rate above 5 warrants deeper review. In FMCSA SMS, focus on Cargo-Related, Driver Fitness, Vehicle Maintenance, and HOS BASICs. Above the 65th percentile is a concern; above 80th is a poor fit for high-value freight without corrective evidence.

Step	Where to check	Red flag	Action
Authority	SAFER	Not Authorized for Property	Do not tender
Insurance	SAFER and insurer	Expired or wrong legal entity	Direct confirmation
OOS rates	Inspection history	Far above 5.5% driver or 22% vehicle	Escalate or reject
Cargo BASIC	SMS	Above 65th percentile	Review violations
Crash rate	SAFER	Above 5/100 vehicles	Deeper review

One-time vetting is not enough

Authority can be suspended or revoked after booking and before pickup. A policy can lapse when a premium is missed, a carrier can change its legal entity, and a trailer can be replaced after the photographs were sent. For a large shipper tendering 100 or 500 loads a month, a weekly spreadsheet check is not continuous control.

Use a monitoring service such as Highway, RMIS, carriers.fm, or a TMS integration to alert on authority status, insurance cancellation, safety changes, address changes, and carrier identity changes. “24/7 monitoring” means the system can flag a change outside business hours; it does not mean someone watches a dashboard continuously. For a $400,000 machine, require an active-status check before dispatch even when the carrier is approved.

Broker versus asset carrier

A broker arranges transportation and normally does not own the truck. An asset carrier controls the tractor, trailer, driver, and motor-carrier authority. Both can be legitimate. Ask directly: “Which legal entity will take possession, and what MC/USDOT number will appear on the BOL?”

A double broker accepts a load as though it will haul it, then re-brokers it to another carrier without the shipper’s informed consent. The result can be an unknown carrier, mismatched insurance, stolen freight, fraudulent tracking, or a claim against a company that never had custody. A broker may also unknowingly receive a fraudulent tender from a bad actor using a legitimate carrier’s identity.

Protect the shipment by requiring the actual carrier name, MC number, USDOT number, truck number, trailer number, and driver contact before load day. Match the carrier arriving at the gate to that data and to the COI. Do not accept “we will send the carrier once dispatched.” If the truck changes, pause loading until authority and insurance are reverified. Keep the broker’s legal name and the actual carrier’s legal name distinct in the record.

Verify the exact trailer

Request photographs taken within 24–48 hours, showing the full trailer from both sides, deck surface, rear, tires, tie-down points, and tarp system. For coils, request a photo of the coil racks or saddles with capacity markings. For machinery, request D-ring locations and working-load-limit markings.

Look for tire tread, sidewall cuts, exposed cords, uneven wear, missing valve caps, and mismatched tires on heavily loaded axles. Examine the deck for broken boards, protruding fasteners, oil contamination, cracked welds, bent rub rails, and damaged stake pockets. D-rings should be intact, seated in the deck, and not pulled upward or surrounded by cracked metal. A clean tarp photo does not prove a safe trailer.

For step decks and RGNs, confirm lower-deck height, well length, width, axle configuration, ramp condition, and ground-clearance plan. For a coil, verify rack capacity for the actual weight and diameter. Ask the driver how the load will be blocked and where chains will run.

Build a carrier scorecard

A shipper-side scorecard should measure performance over at least 20 loads or a 90-day period:

• On-time pickup rate, with appointment definition.
• On-time delivery rate, with agreed ETA tolerance.
• Detention rate and average dollars per load.
• Damage or cargo-claim rate per 100 loads.
• POD cycle time from delivery to received image.
• Communication score: response time, exception notice, and accuracy.
• Equipment-match rate: correct trailer, racks, tarp, permits, and escorts.

Use scores for development before removal. A carrier with 88% on-time pickup but weak POD speed may need a mobile-document requirement. A carrier with repeated wrong-equipment arrivals or a 4% damage rate should be removed from high-value freight. Do not let a low linehaul rate erase safety and claims performance.

Questions and red flags

Ask: “Do you have racks rated for this weight and diameter?” “What is the cargo limit and insurer?” “Have you moved this commodity?” “Is the driver owner-operator or company driver?” “What are free time and detention terms?” Require pickup photos, delivery POD, PPE, permit responsibility, and truck numbers.

Red flags include no MC/DOT number, a COI naming only a broker, refusal to verify insurance, wrong trailer at pickup, bald tires, a carrier identity that changes without explanation, or a broker who will not disclose the motor carrier. For insurance terms see flatbed cargo insurance; for post-booking controls see PO-to-POD visibility.