Semi truck annual inspection software has one job: make sure no tractor, trailer or dolly ever runs a day past its 12-month inspection, and that proof is on the vehicle and in the file. It sounds like the easiest rule in Part 396, yet "no proof of annual inspection" was one of the most cited roadside violations of 2025. This guide covers what §396.17, §396.19 and §396.21 require, and how to schedule the inspection so it never lapses. Book a 20-minute FleetRabbit demo to see every unit's due date in one view.
Transportation & logistics · Annual DOT inspection
The annual inspection only comes around once a year. That's exactly why it gets missed.
For carriers, safety managers and shop leads keeping tractors, trailers and converter dollies inside their 12-month window.
Annual inspection
PASSED
49 CFR 396.17
Unit 53-118 · inspected 03/2026
Next due by 03/2027
Why Truckers Still Call It the FHWA Annual Inspection, and What 49 CFR 396.17 Requires Today
The rule dates from when the Federal Highway Administration oversaw truck safety, so many shops still say "FHWA inspection" or "DOT annual." FMCSA took over in 2000, and the requirement now sits in 49 CFR 396.17. The key point most fleets miss is that it applies to each unit separately.
Tractor
Own inspection, own report, own proof
12 months
Semitrailer
Inspected separately from the tractor pulling it
12 months
Converter dolly
Counts as its own unit in a double
12 months
Standard
At least the parts listed in Appendix A to Part 396
Who
The carrier itself, or a garage, leasing company or truck stop acting as its agent, using a qualified inspector
Proof
On the vehicle: the report itself, or a sticker or decal based on it
State programs
A passed state periodic inspection that meets Appendix A counts, for 12 months from the last day of that month
A carrier running 40 tractors and 120 trailers is tracking 160 separate 12-month clocks, not 40. That's where a DOT compliance record per unit stops being optional. You can load your units' dates free.
"No Proof of Annual Inspection" Was Cited 227,662 Times at Roadside in 2025
J. J. Keller's tally of 2025 roadside violations, from nearly 2 million inspections, puts the annual inspection fourth, ahead of emergency equipment and brake component defects. Unlike a burned-out lamp, this one is purely a records problem.
1
Lamps inoperable or obscured
660,792
2
Tire tread, inflation or load
311,932
3
Brake hose or tubing
230,677
4
No proof of annual inspection · §396.17
227,662
5
Emergency equipment
209,669
J. J. Keller Compliance Network, "Top 20 commercial vehicle violations of 2025" (January 2026).
Some of those trucks were inspected on time and simply couldn't show it: a decal peeled off, a trailer swapped onto a tractor with no paperwork, a report sitting in a shop office three states away. A walkthrough shows how proof stays with each unit.
What the Annual Inspection Report Must Show Under §396.21, and What Goes on the Decal
There are two pieces of paper in this rule: the full report you keep, and the proof that rides on the vehicle. They carry different information and have different jobs.
Inspection report
§396.21(a) · keep 14 months where the unit is housed or maintained
Inspector's name
Carrier operating the vehicle
Date of inspection
Vehicle identified
Components inspected and results, including any failures
Certification that the inspection meets §396.17
Decal or sticker
§396.17(c) · on the vehicle, in place of carrying the report
Date of inspection
Name and address of whoever keeps the report
Vehicle identification, if not clearly marked
Certification that the vehicle passed
If an inspector asks for the full report, you have to produce it, even when a third-party garage did the work. Storing the report on the unit's record, and not just in the garage's files, means you can.
Every tractor, trailer and dolly, with its next annual inspection date and its report one click away
Who Can Sign Off: Annual Inspector Qualifications Under §396.19 and the Records You Keep on Them
The inspection is only valid if the person doing it is qualified, and the carrier has to keep evidence of that. Section 396.19 gives two ways to qualify.
Completed a federal- or state-sponsored training program, or holds a state or Canadian provincial certificate to inspect commercial vehicles.
or
At least one year of combined training and experience, such as manufacturer training, or work as a mechanic or inspector in a fleet, garage or government program.
Keep the evidence
For as long as the person performs your annual inspections, plus one year. Inspector knowledge of Part 393 and Appendix A is required on both paths.
When an outside garage performs the inspection, ask for the inspector's name on every report and keep a copy of their qualification. It's a small step that auditors do check.
Schedule the Annual Inspection Into Your A/B/C Service Plan So No Unit Ever Lapses
The fix is to stop treating the annual as a separate event. Give every unit a due date, a 30-day warning window and a link to its next major service, and it gets done during a visit that was happening anyway.
Expiry radar · next 90 days
Sample fleet
Tractor 3302
74 days · with next C-service
Trailer 53-204
22 days · book it
Dolly D-11
9 days · in the shop Friday
Trailer 53-077
Expired · locked from dispatch
Lining the annual up with a C-service on the preventive maintenance schedule saves a shop visit per unit per year. Locking expired units out of dispatch makes sure a lapse can't reach the road.
How FleetRabbit Tracks the Annual DOT Inspection for Every Semi Truck and Trailer
FleetRabbit keeps the annual inspection, the report and the inspector's qualification on each unit's record, and ties the due date to the rest of the maintenance plan.
12
One clock per unit
Tractors, trailers and dollies each with their own 12-month due date and warning window
§
FMCSA-ready reports
Appendix A checklist on a phone or laptop, photos for failures, inspector named and certified
C
Linked to A/B/C-service
Annual due dates line up with the next major service
✓
Audit-ready file
Reports kept 14 months, DVIRs and repairs alongside, ready for any official
What the 20-minute demo covers
Your units loaded with their last inspection dates
The 90-day expiry view, sorted by days left
An Appendix A inspection completed on a phone
An expired trailer flagged for dispatch
Inspections themselves run through FleetRabbit's digital inspection tools, so the annual and the daily DVIR live in the same place.
Semi Truck Annual Inspection: Questions Carriers Ask
Is the FHWA inspection the same as the DOT annual inspection?
Yes. "FHWA inspection" is the older name from when the Federal Highway Administration oversaw trucking. Today it's the annual periodic inspection under 49 CFR 396.17, administered by FMCSA.
Does a trailer need its own annual inspection?
Yes. Each unit in a combination, including semitrailers and converter dollies, must be inspected separately.
How long must annual inspection reports be kept?
Fourteen months from the report date, where the vehicle is housed or maintained, under §396.21.
Does a state inspection count?
If the state's periodic inspection program meets Appendix A, a passed state inspection satisfies the federal requirement for 12 months from the last day of the month it was performed.
Who can perform the annual inspection?
A qualified inspector under §396.19, either working for the carrier or for a garage or similar business acting as its agent.
Can we try annual inspection tracking free?
Never Let a Tractor, Trailer or Dolly Run Past Its Annual Inspection Again
One 12-month clock per unit, reports and decals on file, inspectors documented, and annuals scheduled with the service already planned.
Free for up to 3 units · No credit card required
October 22, 2026
By Derek Goes
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