If an auditor asked for the last annual inspection on every truck and trailer in your fleet, how long would it take you to find them? Appendix G to the Federal Motor Carrier Safety Regulations is the list of minimum standards that a periodic (annual) inspection is measured against, and 49 CFR 396.17 requires each commercial motor vehicle to pass one at least every 12 months. The inspection itself is only half the job. You also need a qualified inspector, a report with the right details, and a record you can produce on request. This guide gives you a practical Appendix G checklist by system, the records you need to keep, and how Truck Inspection & Maintenance Management Software keeps due dates and reports in one place. Start free and track annual inspection due dates per vehicle.

Appendix G · Inspect → Record → Remind → Repair

FMCSA Appendix G Inspection Checklist: Requirements & Compliance

Annual inspections fail on paperwork as often as on equipment: a missed due date, a report in the wrong folder, a defect nobody turned into a repair. Truck Inspection & Maintenance Management Software keeps each vehicle's inspection history in one place, helps you track when the next one is due, and routes defects found into work orders.

1 · Track due date→2 · Inspect to Appendix G→3 · Store report→4 · Defects to work orders

Appendix G at a Glance

12months maximum between periodic inspections (§396.17)
14months to keep the inspection report (§396.21)
1qualified inspector required to perform it (§396.19)
Annual vs. daily Appendix G covers the periodic inspection. It isn't the same as the driver's daily pre-trip or DVIR, which are separate duties. Think of the annual inspection as a deeper, documented check on top of daily inspections and your PM program.

The Appendix G Checklist, by System

Appendix G sets minimum standards for the major safety systems below. This is a working summary, so always check the current regulation text and your inspector's form for the exact pass/fail criteria.

1Brake system
  • Service and parking brakes
  • Drums and rotors, linings
  • Hoses, tubing, air lines
  • Low-pressure warning, compressor
2Coupling devices
  • Fifth wheels, mounting
  • Pintle hooks and drawbars
  • Safety devices and chains
3Exhaust system
  • Leaks and loose or missing parts
  • Location and condition
4Fuel system
  • Visible leaks
  • Tanks, lines, caps, mountings
5Lighting devices
  • Head, tail, stop, turn lamps
  • Clearance and marker lamps
6Safe loading
  • Cargo securement devices
  • Tiedown and securement hardware
7Steering mechanism
  • Steering wheel and column
  • Linkage, gear box, joints
8Suspension
  • Springs, hangers, U-bolts
  • Air springs and components
9Frame
  • Cracks, loose or missing fasteners
  • Cross members and brackets
10Tires
  • Tread depth, cuts, bulges
  • Inflation and condition
11Wheels and rims
  • Cracks, damage
  • Fasteners and lug nuts
12Windshield & wipers
  • Glass damage, obstruction
  • Wiper operation

Appendix G also includes motorcoach seats and rear impact guards where they apply.

Two Numbers Inspectors Check Closely: Tire Tread

4/32"Steering axle tiresFails the Appendix G standard if tread is less than this
2/32"All other tiresFails if tread is less than this on a major groove

One Record Per Vehicle, Ready When Asked

Keep each truck and trailer's inspection history together with its PM and repair records. See upcoming due dates per vehicle, store inspection reports against the unit, and send defects found into work orders so they're fixed and documented. Free for up to 3 trucks.

What Your Inspection Report Needs

Under §396.21, the inspector's report has to identify the inspection, not just say "passed." Make sure yours includes:

✔Motor carrier or entity the vehicle is operated for
✔Date of the inspection
✔Vehicle identification (unit number, VIN or plate)
✔Certification that the vehicle passed Appendix G or equivalent
✔Inspector's name and signature, and qualification details
Proof on the vehicle A copy of the report or a decal or label showing the inspection must be available with the vehicle, and the carrier keeps the report for 14 months. Check the regulation text for exactly what must be displayed.

From Inspection to Audit-Ready, in 4 Steps

1ScheduleTrack the 12-month due date for every unit.
2InspectUse a qualified inspector and the Appendix G items.
3RepairTurn each defect into a work order and close it out.
4RetainStore the report for at least 14 months.

Frequently Asked Questions

What is FMCSA Appendix G?
It's the set of minimum periodic inspection standards in the FMCSRs, listing the items a vehicle must be checked against during its annual inspection. Start free and track annual inspections per vehicle.
How often is the Appendix G inspection required?
At least once every 12 months for each commercial motor vehicle, including trailers, under §396.17. Some carriers inspect more often as part of their PM program.
Who can perform it?
A qualified inspector under §396.19, which covers required knowledge and training, including brake-related qualifications. It can be in-house or a third party. Contact us for help organizing records.
Can a roadside inspection count as the annual inspection?
In some cases, yes, if it meets the requirements of the regulation. Check §396.17 and keep the documentation. Do not assume a roadside inspection qualifies.
Schedule · Inspect · Repair · Retain

Make Every Annual Inspection Easy to Prove

Due dates per vehicle, inspection records in one place, and defects routed into work orders. Start free to organize your fleet's inspection history, or contact us and we'll help set up your checklist.

No credit card required. Free for up to 3 trucks.