# Buckeye Pipe Line Company — Pipeline Safety Interpretation

**Citation:** PI-93-063  
**Type / status:** guidance / guidance  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 1993-12-01

PI-93-063 response to Buckeye Pipe Line Company concerning 195.124.

## Document text

<<<PAGE 1>>>

December 1, 1993
Mr. Dean R. Moyer
Regulatory Compliance Administrator
Buckeye Pipe Line Company
P.O. Box 368
Emmaus, PA 18049-0368
Dear Mr. Moyer:
This responds to your letter of November 1, 1993, requesting that we better define the
term "closure" in 49 CFR 195.124.
Closure as used in §195.124 is a device used for access to the interior of the pipeline
system, including that used on hazardous liquid pipeline scraper launching and receiving
vessels commonly referred to as "scraper traps."
The term "closure" also includes a blind flange. Such flanges may be constructed to meet
American National Standards Institute B16.5 as provided in the ASME Boiler and
Pressure Vessel code referenced in §195.124. The B16.5 code is an acceptable industry
standard for the construction of a blind flange.
More comprehensive industry code requirements on closures can be found in section
406.6 of the American Society of Mechanical Engineers B31.4 Code.
Sincerely,
Cesar De Leon
Director of Regulatory Programs
dal/195.124/93-12-01

## Provenance

- Official: Yes
- Source: <https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/Pipeline/1993/PI93063.pdf>
- Source ID: `phmsa`
- SHA-256: `ba7428db2ab575fdd8622537ffe0759d20ea1907b63e0bd63bb32faaa3b23e38`
- Retrieved: 2026-08-20T00:59:31.977Z
- Exported: 2026-08-22T15:05:11.337Z
- Document slug: `phmsa-interpretation-pi-93-063`

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