All Plans
Every carrier in FMCSA's registry is bucketed into a fleet size class — a single letter from A to Q based on power-unit count. DOT Lead Scout shows this letter directly and uses raw power-unit and driver counts to drive scoring, badges, and the High Value designation.
The Fleet Size Class Codes #
fleetsize code. The mapping isn't published anywhere in plain English, but observed across millions of carrier records, the common letters track to power-unit counts roughly like this: Ranges are observed, not official
FMCSA doesn't publish the exact letter-to-count mapping. These ranges are derived from analyzing millions of fleetsize + power_units pairs in the live data. They're directionally accurate — a B is always smaller than a C, always smaller than a D.
Power Units & Driver Counts #
How Fleet Size Affects Opportunity Score #
The Driver-to-Truck Ratio (Utilization) #
total_drivers ÷ power_units. This number is more telling than fleet size alone because it reveals how the fleet is actually staffed: High Value badge is automatic
Any carrier with a utilization ratio of 1.5x or higher gets the High Value green badge throughout the platform — on lead lists, the map, daily digests, and lead detail panels.
The Fleet Tier Up Change Signal #
fleetsize letter increases (e.g. C to D, or F to G), DOT Lead Scout fires the Fleet Tier Up change signal. This means the carrier just crossed a fleet-size threshold — they're scaling, hiring, and almost certainly onboarding new drivers who need physicals. Why Fleet Size Drives Exam Demand #
Plus turnover
These numbers assume routine biennial physicals only. Trucking has high driver turnover — new drivers need a pre-employment exam, which roughly doubles real-world demand for an actively-hiring carrier.
