Every commercial motor vehicle under FMCSA rules has to pass a periodic inspection at least once every 12 months, and the proof has to ride on the vehicle. RDI Power does those annual inspections in Brooksville for single trucks, fleets, trailers, buses and hotshot rigs. Because we are a full diesel repair shop, anything that does not pass can be repaired here instead of sent somewhere else, and the inspection gets finished the same way it started: documented, with photos.
Who needs an annual DOT inspection
FMCSA’s definitions (49 CFR 390.5) treat a vehicle used on a highway in interstate commerce as a commercial motor vehicle when it:
- Has a gross vehicle weight rating or gross combination weight rating of 10,001 pounds or more
- Is designed or used to carry more than 8 passengers, including the driver, for compensation
- Is designed or used to carry more than 15 passengers, including the driver, when not for compensation
- Hauls hazardous materials in a quantity that requires placards
Under 49 CFR 396.17, each of those vehicles needs the annual inspection, and in a combination every unit counts. For a tractor pulling a semitrailer and a full trailer, the tractor, the semitrailer, the full trailer and the converter dolly are each inspected. Intrastate rules can differ, so if you are unsure whether a particular truck is covered, confirm it with your safety advisor or FMCSA before the due date, not after.
Hotshot rigs
A hotshot setup, usually a 1-ton class pickup or cab-and-chassis truck pulling a gooseneck or flatbed trailer, often crosses the 10,001-pound line on its combination rating. When it runs in interstate commerce, the truck and the trailer each need their own annual inspection. We inspect both in the same visit, and our technicians work on the trucks hotshot drivers run every day: Ford Super Duty with the Power Stroke, Ram with the Cummins and GM with the Duramax.
What an annual inspection checks
The federal standard is Appendix A to Part 396, the minimum periodic inspection standards. Older forms still call it Appendix G, its location before a 2021 redesignation. A vehicle does not pass if it has a defect listed there. At a general level, the inspection covers:
- Brakes. Service and parking brakes, drums and rotors, brake hoses and tubing, the air compressor, low pressure warning, tractor protection valve, ABS and automatic slack adjusters, plus hydraulic, electric and vacuum systems where equipped. Air brake chamber stroke is measured against readjustment limits.
- Coupling devices. Fifth wheels, pintle hooks, drawbar eyes and tongues, safety devices such as chains, and saddle-mounts.
- Exhaust. Leaks forward of or below the cab or sleeper, and routing that could burn or damage wiring, fuel lines or other parts.
- Fuel system. Visible leaks, missing filler caps and tanks that are not securely mounted.
- Lighting. Every required lamp and reflector working.
- Safe loading. Nothing that can fall onto the road, and front-end protection where it is required.
- Steering. Wheel free play, column, gearbox, pitman arm, ball joints, tie rods, drag links and power steering.
- Suspension. U-bolts, spring hangers and axle positioning parts, spring assemblies, air suspension, and torque, radius or tracking components.
- Frame. Cracked, broken, loose or sagging members, and tire and wheel clearance.
- Tires, wheels and rims. Tread depth (steer tires need at least 4/32 inch in a major groove), cuts, separations, leaks, overloads, cracked rims, loose fasteners and welds.
- Windshield and wipers, motorcoach seats on buses, and rear impact guards on trailers.
The paperwork
Under 49 CFR 396.21, the inspector prepares a report that identifies the inspector, the motor carrier, the date and the vehicle, lists the components inspected with the results, including anything that did not meet the standard, and certifies that the inspection is accurate and complete. That report, or a sticker or decal based on it, has to be on the vehicle. The carrier keeps the original or a copy for 14 months where the vehicle is housed or maintained, and it must be available to any authorized official who asks.
The rule requires inspectors who are qualified by training, experience or both, and it allows a motor carrier to have a commercial garage perform the annual inspection on its behalf. Along with the report, you get our digital vehicle inspection: photos and technician notes on anything worn, leaking or out of spec, including items that pass today but are getting close.
When a unit does not pass
A failed item does not end the visit. We show you the defect with photos, explain what the repair involves, and once you approve it, fix it in the same shop and complete the inspection. Brake work, tires, lighting, steering and suspension repairs are all part of our regular work. On trailers, the usual problems are brake adjustment, lights and wiring, and tires, which our trailer repair page covers in detail. For air brake trucks, see brake systems.
How it fits an RDI Fleet PM schedule
For fleet accounts, the annual inspection is not a separate errand. We put each unit’s due date on the shared PM schedule and line the inspection up with a scheduled PM, so the truck comes out of service once instead of twice. Over the year, PM visits catch brake wear, leaks and tire problems early, which makes the annual a confirmation instead of a surprise. Inspections can be done in the Brooksville shop or at your yard. See how RDI Fleet schedules it.
Book the annual
Make an appointment, bring the truck and trailer together if they run as a pair, and bring last year’s report if you have it. We will inspect every unit to the federal standard, show you what we find, and send you out with the paperwork your truck needs to carry.