# 49 CFR § 199.103: Use of persons who fail or refuse a drug test

> Federal · Regulations · In force

URL: https://www.frixlaw.com/law-library/statutes/ecfr-49-199.103

## Section

- **Citation:** 49 CFR § 199.103
- **Heading:** Use of persons who fail or refuse a drug test
- **Jurisdiction:** Federal
- **Kind:** Regulations
- **Status:** In force
- **Text as of:** September 22, 2026
- **Source:** Publisher's official text
- **Location:** Title 49—Transportation > Subtitle B—Other Regulations Relating to Transportation > CHAPTER I—PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION > SUBCHAPTER D—PIPELINE SAFETY > PART 199—DRUG AND ALCOHOL TESTING > Subpart B—Drug Testing

## Text

(a) An operator may not knowingly use as an employee any person who—
(1) Fails a drug test required by this part and the medical review officer makes a determination under DOT Procedures; or
(2) Refuses to take a drug test required by this part.
(b) Paragraph (a)(1) of this section does not apply to a person who has—
(1) Passed a drug test under DOT Procedures;
(2) Been considered by the medical review officer in accordance with DOT Procedures and been determined by a substance abuse professional to have successfully completed required education or treatment; and
(3) Not failed a drug test required by this part after returning to duty.
[53 FR 47096, Nov. 21, 1988, as amended by Amdt. 199-2, 54 FR 51850, Dec. 18, 1989. Redesignated and amended by Amdt. 199-19, 66 FR 47118, Sept. 11, 2001]

## Nearby sections

- [49 CFR § 199.1 § 199.1 Scope.](https://www.frixlaw.com/law-library/statutes/ecfr-49-199.1.md)
- [49 CFR § 199.2 § 199.2 Applicability.](https://www.frixlaw.com/law-library/statutes/ecfr-49-199.2.md)
- [49 CFR § 199.3 § 199.3 Definitions.](https://www.frixlaw.com/law-library/statutes/ecfr-49-199.3.md)
- [49 CFR § 199.5 § 199.5 DOT procedures.](https://www.frixlaw.com/law-library/statutes/ecfr-49-199.5.md)
- [49 CFR § 199.7 § 199.7 Stand-down waivers.](https://www.frixlaw.com/law-library/statutes/ecfr-49-199.7.md)
- [49 CFR § 199.9 § 199.9 Preemption of State and local laws.](https://www.frixlaw.com/law-library/statutes/ecfr-49-199.9.md)
- [49 CFR § 199.100 § 199.100 Purpose.](https://www.frixlaw.com/law-library/statutes/ecfr-49-199.100.md)
- [49 CFR § 199.101 § 199.101 Anti-drug plan.](https://www.frixlaw.com/law-library/statutes/ecfr-49-199.101.md)
- [49 CFR § 199.103 § 199.103 Use of persons who fail or refuse a drug test.](https://www.frixlaw.com/law-library/statutes/ecfr-49-199.103.md)
- [49 CFR § 199.105 § 199.105 Drug tests required.](https://www.frixlaw.com/law-library/statutes/ecfr-49-199.105.md)
- [49 CFR § 199.107 § 199.107 Drug testing laboratory.](https://www.frixlaw.com/law-library/statutes/ecfr-49-199.107.md)
- [49 CFR § 199.109 § 199.109 Review of drug testing results.](https://www.frixlaw.com/law-library/statutes/ecfr-49-199.109.md)
- [49 CFR § 199.113 § 199.113 Employee assistance program.](https://www.frixlaw.com/law-library/statutes/ecfr-49-199.113.md)
- [49 CFR § 199.115 § 199.115 Contractor employees.](https://www.frixlaw.com/law-library/statutes/ecfr-49-199.115.md)

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Source: Frix Law Library, https://www.frixlaw.com/law-library/statutes/ecfr-49-199.103. Check the current official text before relying on it. Not legal advice.