# BOC Gases — Hazardous Materials Safety Interpretation

**Citation:** 02-0083  
**Type / status:** guidance / guidance  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2002-04-29

02-0083 response to BOC Gases concerning 172.400.

## Document text

<<<PAGE 1>>>

or ransporation
400 Seventh St., S.W.
Washington, D.C. 20590
APR 2 9 2002
Mr. Jack B. Wert
Ref. No.: 02-0083
BOC Gases
575 Mountain Avenue
Murray Hill, NJ 07974
Dear Mr. Wert:
This is in response to your letter dated March 12; 2002 requesting clarification on § 172. 400a(a) (1) of
the Hazardous Materials Regulations (HMR;; 49 CFR Parts 171 -180) regarding the use of a cylinder
• identification collar in lieu of a cylinder label. For our review, you provided a sample of your company's
cylinder identification collar affixed to the top part of a cylinder.
As provided by §172.400a (a)(1), cylinders containing flammable (Division 2.1) and nonflammable
(Division 2.2) compressed gases that are carried by private or contract motor carrier and which are not
overpacked are authorized to be marked in accordance with CGA Pamphlet C-7, appendix A without
further DOT labeling.
As set forth in CGA: Pamphlet C-7, appendix A, A-7, shoulder markings are permissible as long as the
basic markings do not cover any permanent markings. The cylinder identification collar you provided
covers the permanent DOT specification markings. Therefore, the cylinder identification collar does not
meet the conditions set forth in CGA Pamphlet C-7 appendix A. However, except for your identification
collar covering the permanent markings on the DOT specification cylinder, the sample collar otherwise
conforms to the provisions specified in § 172.400a(a)(1).
I trust this satisfies your inquiry. If we can be of further assistance, please contact us.
Sincerely,
Delmer F. Billings
Chief, Standards Development
Office of Hazardous Materials Standards
172400å
ДНИНИННІ
020083

<<<PAGE 2>>>

Webb
•
$172.400a
AMN BOC GASES
Labeling
Murray Hill, NJ 07974
575 Mountain Avenue
02-0083
March 12, 2002
Mr. Ed. Mazzullo
Director Office of Hazardous Materials Standards
Research and Special Programs Administration.
US Department of Transportation
400 Seventh Street-SW
Washington, DC 20590
Subject: Clarification on the Use of Cylinder Identification Collars in Lieu of
. Cylinder Labels
Dear Mr. Mazzullo,
Some time ago, September 1999, BOC had decided that they wanted to use cylinder
identification collars in lieu of the traditional cylinder labeling. This system would
provide BOC with not only with all the DOT required labeling, but also the
capability to track cylinders by bar code and transponders.
Pursuant to this endeavor I contacted the Department of Transportation to
determine if there were any regulatory or technical reasons which would preclude
use.

<<<PAGE 3>>>

•
•
If there are any further questions please call or e-mail me and I will address any
concerns. I look forward to your favorable reply.
Respectfully,
Jack B. Wert
Manager, Compressed Materials and Related Technology
* Tel: 908-771-1338
= Fax: 908-508-3627
X mailto:.Jack. Wert@us.gases.boc.com
£ 575 Mountain Avenue, Murray Hill, NJ 07974, USA
Enclosure (1) E-mail correspondence between BOC and the Department of'
Transportation.

## Provenance

- Official: Yes
- Source: <https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/2002/020083.pdf>
- Source ID: `phmsa`
- SHA-256: `78ceabe462afd12aed3444e50a34df28a51d8ea64e6f236749c8d3b1c80444e5`
- Retrieved: 2026-08-20T00:59:31.977Z
- Exported: 2026-08-22T07:21:03.609Z
- Document slug: `phmsa-interpretation-02-0083`

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