# City Carbonic Sales & Service, Inc. — Hazardous Materials Safety Interpretation

**Citation:** 07-0117  
**Type / status:** guidance / guidance  
**Agency:** Pipeline and Hazardous Materials Safety Administration  
**Effective:** Not stated  
**Published:** 2007-06-27

07-0117 response to City Carbonic Sales & Service, Inc. concerning 180.209, 180.213.

## Document text

<<<PAGE 1>>>

of Transportation
U.S. Department
Washington DC 20590
1200 New Jersey Ave.. SE
Pipeline and Hazardous
Materials Safety
Administration
JUN 27 2007
President
Ms. Amy Morgan Bruecks
Ref. No. 07-0117
406 S.W. 4th St.
City Carbonic Sales & Service, Inc.
Oklahoma City, OK 73109
Dear Ms. Bruecks:
This is in further reference to my May 17 response (ref. no. 07-0082) to your letter
requesting clarification of the requirements under the Hazardous Materials Regulations
(HMR; 49 CFR Parts 171-180) applicable to cylinders manufactured of 6351-T6
self-contained breathing apparatus (SCBA), or oxygen service. Specifically, you ask
aluminum alloy and used in self-contained underwater breathing apparatus (SCUBA),
whether only these specific cylinders may be eddy current tested and marked with the
VE marking as required by §§ 180.209 and 180.213, respectively.
and marked with the VE marking regardless of whether the test is required for the
As I stated, the answer is no. Any aluminum alloy cylinder may be eddy current tested
particular cylinder. For aluminum cylinders made of other than alloy 6351-T6 for which
the eddy current test and marking are not required, performance of this additional test
exceeds the HMR requirements and is acceptable.
I hope this additional information is helpful. Please contact this office if you have further
questions.
Sincerely.
Hattie L. Mitchell
Office of Hazardous Materials Standards
Chief, Regulatory Review and Reinvention
180.209
070117
180.213

<<<PAGE 2>>>

Apr 16 07 08:24a
City Carbonic Sa
4052365429
p.2
MCIntyre
$180.209
3-00: 21-
ulinder
07-0082
Phone: (405) 239-2068
Oklahoma City, OK 73109
406 S.W. 4th Street
Toll Free: (800) 286-4291
0117
Fax: (405) 236-5429
April 13, 2007
PHt 1f Hazardous Materials Standards
Attn: Mrs. Hattie Mitchell
Washington, D.C. 20590
400 Seventh Street, S.W.
VIA FACSIMILE: 202-366-3012
Subject Request for a letter of interpretation
Can you please help my company with a written letter of clarification on the following issue?
dioxide, fire extinguisher or other industrial gas service.
(SCBA), or oxygen service" would result in a violation upon a DOT inspection.
Is this requirement intended to be a minimum requirement? Is it an acceptable practice to eddy
current test and mark all aluminum cylinders with the VE regardless of their alloy or use?
Thank you for your assistance in this matter.
Sincerely,
President
Amy Morgan Brueck:
RIN B435

<<<PAGE 3>>>

U.S. Department
of Transportation
1200 New Jersey Avenue. SE
Washington, D.C. 20590
Materials Safety Administration
Pipeline and Hazardous
MAY 17 2007
President
Ms. Amy Morgan Bruecks
Ref. No. 07-0082
406 S.W. 4'" St.
City Carbonic Sales & Service, Inc.
Oklahoma City, OK 73109
Dear Ms. Bruecks:
breathing apparatus (SCUBA), self-contained breathing apparatus (SCBA), or oxygen
tested and marked with the VE marking as required by $$ 180.209 and 180.213,
ervice. Specifically, you ask whether only these specific cylinders may be eddy curren
The answer is no. Any cylinder may be eddy current tested and marked with the VE
narking regardless of whether the test is required for the particular cylinder. For thos
the HMR requirements and is not prohibited.
ylinders for which the eddy current test and marking are not required. the test exceed
I hope this information is helpful. Please contact this office if you have additional
questions.
Sincerely.
Hath Mes
Chief, Regulatory Review and Reinvention
Hattie L. Mitchell
Office of Hazardous Materials Standards

## Provenance

- Official: Yes
- Source: <https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/2007/070117.pdf>
- Source ID: `phmsa`
- SHA-256: `3fdbdeb5559b306f12624699eb1eb7311f0d0341491690fe855236da48cbc8b9`
- Retrieved: 2026-08-20T00:59:31.977Z
- Exported: 2026-08-23T02:17:45.354Z
- Document slug: `phmsa-interpretation-07-0117`

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