# Pipeline Safety Interpretation PI-93-033

**Citation:** PI-93-033  
**Type / status:** guidance / guidance  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 1993-06-25

PI-93-033 concerning 199.1.

## Document text

<<<PAGE 1>>>

June 25, 1993
This is in response to your correspondence of April 20, 1993, to the Transportation Safety
Institute, Pipeline Safety Division, requesting an opinion to determine whether the services
that Turner Tank Trucks, Inc., (TTT) provides to your company would subject their
employees to the drug testing requirements under Part 199 and 40.
Your correspondence indicates that TTT's only involvement as a contractor is providing
services to vacuum up liquids and haul it away from the spill site. They do not perform
any functions to or on the pipeline.
Based on the information provided, it would appear that TTT's employees do not perform
covered functions on a pipeline or LNG facility. Furthermore, the functions performed by
TTT's employees (environmental cleanup) are not regulated by 49 CFR Part 195.
Therefore, TTT's employees would not be subject to the drug testing regulations.
Thank you for your inquiry. our drug testing requirements.
Please let me know if you need additional information about
Sincerely,
Richard L. Rippert
Drug Compliance Coordinator
Office of Pipeline Safety
Compliance
dal/199.1
93-06-25.1

## Provenance

- Official: Yes
- Source: <https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/Pipeline/1993/PI93033.pdf>
- Source ID: `phmsa`
- SHA-256: `13839159f3fb4addf7768855d96c11522efd2a8cc73ac909c701b25b9bff1f3c`
- Retrieved: 2026-08-20T00:59:31.977Z
- Exported: 2026-08-22T12:15:27.829Z
- Document slug: `phmsa-interpretation-pi-93-033`

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