49 CFR § 199.235 - Required evaluation and testing.

---
identifier: "/us/cfr/t49/s199.235"
source: "ecfr"
legal_status: "authoritative_unofficial"
title: "49 CFR § 199.235 - Required evaluation and testing."
title_number: 49
title_name: "Transportation"
section_number: "199.235"
section_name: "Required evaluation and testing."
chapter_name: "PIPELINE AND HAZARDOUS MATERIALS SAFETY ADMINISTRATION, DEPARTMENT OF TRANSPORTATION"
subchapter_number: "D"
subchapter_name: "PIPELINE SAFETY"
part_number: "199"
part_name: "DRUG AND ALCOHOL TESTING"
positive_law: false
currency: "2026-04-05"
last_updated: "2026-04-05"
format_version: "1.1.0"
generator: "[email protected]"
authority: "49 U.S.C. 5103, 60102, 60104, 60108, 60117, and 60118; 49 CFR 1.53."
regulatory_source: "53 FR 47096, Nov. 21, 1988, unless otherwise noted."
cfr_part: "199"
---


# 199.235 Required evaluation and testing.

No operator shall permit a covered employee who has engaged in conduct prohibited by §§ 199.215 through 199.223 to perform covered functions unless the employee has met the requirements of § 199.243.