Subcontracting and Brokering Fleet Capacity

Why Fleets Use Subcontracting and Brokerage

Even the best-managed fleet encounters situations where demand exceeds internal capacity or where certain loads do not fit the fleet's equipment, geography, or driver availability. Rather than turning freight away and damaging customer relationships, many carriers supplement their asset capacity by brokering or subcontracting loads to qualified outside carriers. This creates a flexible business model that captures revenue on every customer load regardless of internal constraints.

Understanding the Regulatory Distinction

FMCSA draws a clear line between carrier operations and brokerage:

• Carrier authority (MC number): Required to transport freight using your own equipment and drivers. Your inspection and violation records on TruckCodes reflect this operation.
• Broker authority: Required to arrange transportation by other carriers without assuming responsibility for the freight itself. Requires a separate broker bond or trust fund ($75,000 minimum).
• Dual authority: Many fleets hold both carrier and broker authority, hauling some loads with their own trucks and brokering overflow to partner carriers.

If your fleet currently only holds carrier authority and wants to broker freight, you must apply for broker authority through FMCSA and obtain the required surety bond or trust fund.

When to Subcontract vs. Broker

Subcontracting (Interline/Trip Lease)

Under subcontracting, another carrier's driver and equipment operate under your authority. The subcontracted carrier's safety performance flows to your SMS record. Use subcontracting when:

• You need branded, consistent service under your operating authority
• The customer's contract requires loads to move under your MC number
• You can vet and monitor the subcontractor's equipment and drivers closely

Brokerage

Under brokerage, the hauling carrier operates under their own authority. Their safety record stays with their USDOT number. Use brokerage when:

• You want to avoid the compliance liability of subcontracting
• The freight is outside your normal equipment type or geography
• You are scaling a non-asset division of your business

Vetting Subcontractors and Partner Carriers

Whether brokering or subcontracting, you are responsible to your customer for service quality. Vet every partner carrier before tendering them a load:

1. Verify active operating authority and insurance on FMCSA's SAFER system or through TruckCodes carrier search
2. Review their inspection history and violation records—avoid carriers with high OOS rates or multiple serious violations
3. Check their SMS BASIC percentile scores—carriers in alert status on any BASIC present elevated risk
4. Verify insurance certificates directly with the issuing insurer, not just a copy from the carrier
5. Check the FMCSA Drug and Alcohol Clearinghouse for the carrier's violation status

Managing the Brokerage Operation

If you are building a brokerage arm within your fleet operation, establish:

• Separate accounting: Brokerage revenue and expenses should be tracked separately from asset-based operations for both financial clarity and regulatory compliance
• Carrier onboarding process: Standardized packet collection including authority, insurance, W-9, and signed carrier agreement
• Load tracking: Provide customers visibility on brokered loads just as you would on asset loads
• Claims process: Define responsibility for cargo claims, detention, and accessorial disputes in your broker-carrier agreement

Risk Management

Brokering and subcontracting introduce risks that asset operations do not carry:

• Double brokering: Prohibit partner carriers from re-brokering your loads without authorization. This is a growing industry problem that creates liability gaps.
• Cargo liability: Clarify cargo insurance responsibility in writing. As a broker, your contingent cargo policy covers gaps in the carrier's coverage.
• Service failures: Late deliveries or freight damage by a partner carrier reflect on your customer relationship. Monitor partner performance metrics and remove underperformers quickly.

Scaling the Model

Many successful carriers started as pure asset operators and gradually built brokerage capabilities that now rival their fleet revenue. The key is treating brokerage as a professional operation with dedicated staff, technology (TMS with brokerage modules), and quality standards—not an afterthought for loads your trucks cannot cover. Use the TruckCodes research tools to identify market opportunities and the fleet tools for operational analysis as you scale.