393.95 Violation: What It Means and How to Fix It
Data through September 24, 2026 · Last updated October 28, 2026 · By Chad Griffith, founder
Quick Answer
393.95 (Emergency equipment on all power units) was cited 49,840 times in roadside inspections of interstate for-hire carriers with 5 to 50 trucks from September 25, 2024 to September 24, 2026, and 0.0% of those citations put the driver or vehicle out of service. The most common version is 393.95A4-EEUS: Emergency Equipment - Fire Extinguishers - unsecured.
49,840
Citations on carriers with 5 to 50 trucks
0%
Out of service
316,580
All carriers, same period
What the rule says
Each power unit carries a properly rated, charged and secured fire extinguisher and the required warning devices for a stopped vehicle (49 CFR 393.95).
When it puts you out of service
Not out of service here, but cheap to avoid and cited constantly.
The codes on the inspection report
| Code | What the officer wrote | Severity weight | Citations, 5 to 50 trucks | Out of service |
|---|---|---|---|---|
| 393.95A4-EEUS | “Emergency Equipment - Fire Extinguishers - unsecured” | 2 | 14,156 | 0.0% |
| 393.95F | “Emergency Equipment - Stopped vehicle warning devices missing or improper” | 2 | 11,556 | 0.0% |
| 393.95A1 | “Emergency Equipment - Fire Extinguishers - no fire extinguisher present or not properly rated.” | 2 | 10,436 | 0.0% |
| 393.95A | “No/discharged/unsecured fire extinguisher” | 2 | 8,880 | 0.0% |
| 393.95A4-EENA | “Emergency Equipment - Fire Extinguishers - not readily accessible or filled” | 2 | 2,307 | 0.0% |
| 393.95B | “Emergency Equipment - A power unit requiring fuses - missing a spare fuse for a required part or accessory (e.g. lamps required by 393.11 ABS lights or low air” | 2 | 1,259 | 0.1% |
| 393.95A3 | “Emergency Equipment - Fire Extinguishers - no visual indicator” | 2 | 665 | 0.0% |
| 393.95K-EE | “Emergency Equipment - Stopped vehicle warning devices inadequate flag size” | 2 | 434 | 0.0% |
| 393.95A2 | “Emergency Equipment - Fire Extinguishers - no label or marking” | 2 | 60 | 0.0% |
| 393.95A1I | “Emergency Equipment (HM) - No 10 B:C (or more) fire extinguisher for quantities of hazardous materials that requires placarding.” | 2 | 59 | 0.0% |
| 393.95G | “Emergency Equipment (HM) - Improper warning devices for hazardous material loads.” | 2 | 28 | 0.0% |
How it scores (violation points)
How it scores: in FMCSA's Safety Measurement System each violation counts its severity weight, plus 2 if it put the driver or vehicle out of service, times 3 in its first 6 months, 2 from 6 to 12 months, and 1 from 12 to 24 months. FMCSA has approved a simpler scale that is not live yet.
How to fix it
- Mount the extinguisher in a bracket, check the gauge, and replace it if it is discharged.
- Put three warning triangles in every cab.
Stop it happening again
- Add the extinguisher gauge and the triangles to the pre-trip checklist.
Challenging it in DataQs
Use DataQs (dataqs.fmcsa.dot.gov) only when the report is wrong: the wrong carrier or vehicle, a violation that did not happen, or a citation a court dismissed without a fine or found you not guilty of, which removes it from the Safety Measurement System; a conviction of a different charge lowers its weight to 1 (FMCSA adjudicated citations policy). Fixing the defect afterward is not a reason to remove it; keep the repair record instead.
FileFlo reads your public FMCSA record, lists every violation with the rule behind it, and keeps the driver and vehicle records that stop repeats.
Run it yourself: the Audit-Ready Setup, $499 through December 31, 2026, then $199 a month for up to 15 trucks. Or FileFlo runs it: $1,500 a month for up to 15 trucks, Setup included, and your first month back if you are not happy.
About these numbers
Counts are violations cited in roadside inspections used in FMCSA's Safety Measurement System from September 25, 2024 to September 24, 2026 (dataset 8mt8-2mdr on data.transportation.gov, October 2026 run). Carriers with 5 to 50 trucks means 66,936 active interstate for-hire carriers with 5 to 50 power units and more trucks than buses, based in the 50 states or DC, from FMCSA's census file. This is FileFlo's reading of public FMCSA data, not an FMCSA rating. Severity weights are the current SMS weights.