# Pipeline Safety Interpretation PI-91-027

- **operation:** document
- **citation:** PI-91-027
- **title:** Pipeline Safety Interpretation PI-91-027
- **source type:** guidance
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** guidance
- **official:** true
- **published on:** 1991-10-07
- **effective on:** Not available
- **summary:** PI-91-027 concerning 199.3.
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- **app url:** https://regulus.evalyn.ai/document/phmsa-interpretation-pi-91-027
- **source url:** https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/Pipeline/1991/PI91027.pdf
**body:**

<<<PAGE 1>>>

U.S. Department
of Transportation
Research and
Special Programs
Administration
October 7, 1991
This is in response to the fax you sent on May 24, 1991, requesting guidance on whether
certain circuit breaker electricians and crew leader are subject to the drug testing
requirements under Part 199.
I have reviewed the job descriptions you provided and discussed several areas of concern
with a representative from your company. It appears there are several functions referring to
repair or rebuilding of operating mechanisms of circuit breakers, air compressors, and
hydraulic pumps which could be covered under Part 193. A key issue in this situation is if
repairs or maintenance work on the equipment occurs at the LNG facility. Our regulations
stipulate that employees who perform covered functions on an LNG facility are subject to
the drug testing requirements of Part 199.
Section 193.2617 outlines procedures concerning the repair of an operator's components.
A person performing those repairs on a compressor unit or hydraulic pump, which meet the
definition of "component" in § 193.2007, would make that person subject to the drug testing
program.
Therefore, if these employees performed the above mentioned covered function at an LNG
facility as defined in Part 193, they would be subject to the drug testing requirements of Part
199.
Thank you for your inquiry. assistance.
Please let me know if you need any more information or
Sincerely,
Richard L. Rippert
Drug Compliance Coordinator
Office of Pipeline Safety
Enforcement
dal/199.3
91-10-07
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