# T3-insufficient-clearance-cmv-second — FMCSA commercial driver disqualification offenses and periods

For T3-insufficient-clearance-cmv-second, table is Table 3 (railroad-highway grade crossing); offense is The driver fails to negotiate a crossing because of insufficient undercarriage clearance; vehicle type at time of offense is CMV; occurrence is second; disqualification period is No less than 120 days, recorded from its source on 2026-08-17.

- **Offense ID:** T3-insufficient-clearance-cmv-second _(our reading, not quoted from the source)_
- **Table:** Table 3 (railroad-highway grade crossing) _(our reading, not quoted from the source)_
- **Offense:** The driver fails to negotiate a crossing because of insufficient undercarriage clearance _(verified: appears in the quote below)_
- **Vehicle type at time of offense:** CMV _(our reading, not quoted from the source)_
- **Occurrence:** second _(our reading, not quoted from the source)_
- **Disqualification period:** No less than 120 days _(verified: appears in the quote below)_
- **CFR citation:** 49 CFR 383.51(d)(6) _(our reading, not quoted from the source)_
- **Reinstatement eligible:** n/a _(our reading, not quoted from the source)_

## What the source says

> (6) The driver fails to negotiate a crossing because of insufficient undercarriage clearance * * * | No less than 60 days | No less than 120 days

## Source

- https://www.ecfr.gov/current/title-49/subtitle-B/chapter-III/subchapter-B/part-383/subpart-D/section-383.51

Last verified: 2026-08-17. Review by: 2027-08-17.
Part of [FMCSA commercial driver disqualification offenses and periods](https://referencesource.org/cdl-disqualification-offenses-and-periods/).