# Use of a Schedule I drug, an amphetamine, a narcotic, or other habit-forming drug — Medical conditions that disqualify a commercial driver under 49 CFR 391.41

For Use of a Schedule I drug, an amphetamine, a narcotic, or other habit-forming drug, standard, as the regulation states it is (12) (i) Does not use any drug or substance identified in 21 CFR 1308.11 Schedule I, an amphetamine, a narcotic, or other habit-forming drug; or; paragraph is (b)(12)(i); regulation section is 49 CFR 391.41, recorded from its source on 2026-08-31; source re-checked 2026-09-15.

- **Disqualifying condition or standard:** Use of a Schedule I drug, an amphetamine, a narcotic, or other habit-forming drug _(our reading, not quoted from the source)_
- **Standard, as the regulation states it:** (12) (i) Does not use any drug or substance identified in 21 CFR 1308.11 Schedule I, an amphetamine, a narcotic, or other habit-forming drug; or _(verified: appears in the quote below)_
- **Paragraph:** (b)(12)(i) _(our reading, not quoted from the source)_
- **Regulation section:** 49 CFR 391.41

## What the source says

> (12) (i) Does not use any drug or substance identified in 21 CFR 1308.11 Schedule I, an amphetamine, a narcotic, or other habit-forming drug; or

## Source

- https://www.ecfr.gov/current/title-49/subtitle-B/chapter-III/subchapter-B/part-391/subpart-E/section-391.41

Last verified: 2026-09-15. Review by: 2027-08-31.
Part of [Medical conditions that disqualify a commercial driver under 49 CFR 391.41](https://referencesource.org/dot-cdl-medical-disqualifying-conditions/).