# Linde Gas North — Hazardous Materials Safety Interpretation

- **operation:** document
- **citation:** 14-0139
- **title:** Linde Gas North — Hazardous Materials Safety Interpretation
- **source type:** guidance
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** guidance
- **official:** true
- **published on:** 2014-11-21
- **effective on:** Not available
- **summary:** 14-0139 response to Linde Gas North concerning 171.23, 173.29.
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/phmsa-interpretation-14-0139.json
- **markdown:** https://regulus.evalyn.ai/document/phmsa-interpretation-14-0139.md
- **app url:** https://regulus.evalyn.ai/document/phmsa-interpretation-14-0139
- **source url:** https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/2014/140139.pdf
**body:**

<<<PAGE 1>>>

U.S. Department
of Transportation
1200 New Jersey Avenue, SE
Washington, D.C. 20590
Materials Safety
Pipeline and Hazardous
Administration
NOV 2 1 2014
Mr. Guy Dalton
Head of Transport Compliance/Safety
Linde Gas North America LLC
130 Briar Hill
Painesville, OH 44077
Ref. No. 14-0139
Dear Mr. Dalton:
This is in response to your July 15, 2014 letter requesting clarification of the Hazardous
Materials Regulations (HMR; 49 CFR Parts 171-180) applicable to the requirements for
transporting foreign cylinders for export under § 171.23(a)(4). Your questions are
paraphrased and answered as follows:
Q1. If a foreign manufactured cylinder was initially shipped for export from the United
States under the conditions of § 171.23(a)(4), may the cylinder containing a residual
gas be returned to the facility where it was previously filled in the United States for
the purpose of refilling the cylinder?
A1. The answer is no. Section 171.23(a)(4) allows transportation of a cylinder not
manufactured, inspected, tested, and marked in accordance with part 178 of the HMR,
or a cylinder manufactured to other than a UN standard, DOT specification, or special
permit to be filled with a gas in the United States and transported for export or for use
on board a vessel under certain conditions. The shipment you describe contains the
residue of a hazardous material and is not being transported solely for export or use on
a vessel. Therefore, it does not meet the requirements of § 171.23(a)(4) and must
conform to the requirements of
§ 171.23(a)(2) to be shipped within the
United States. However, if the foreign made cylinder meets the provisions of §
173.29(b) as an empty packaging, then the cylinder no longer contains a hazardous
material and is not subject to any other requirements of the HMR.
Q2.
May the same foreign manufactured cylinders containing a residual gas be transported
from one fill plant to another as long as no modification to the cylinder or product are
made under § 171.23(a)(4)?

<<<PAGE 2>>>

The answer is no. Transportation between facilities over public roads for the purposes
of filling the cylinder is not considered export or use on a vessel. Therefore, the
cylinders must either be approved in accordance with the HMR or meet the provisions
of § 173.29(b) as an empty packaging.
I hope this satisfies your request.
Sincerely,
pos
T. Glenn Foster
Chief, Regulatory Review and Reinvention Branch
Standards and Rulemaking Division

<<<PAGE 3>>>

Lehmar
71.23 (ax4)
Cylinde
THE LINDE GROUP
14-013 Linde
130 Briar Hill
Painesville, Ohio 44077
July 15, 2014
440-354-5614
440-579-0203
guy.dalton@linde.com
Office of Hazardous Materials Standards
Pipeline and Hazardous Materials Safety Administration, Attn: PHH-10
U.S. Department of Transportation, East Building
1200 New Jersey Avenue, SE.
Washington, DC 20590-0001.
Request for Interpretation
Dear Sir or Madame,
Linde Gas North America LLC (Linde) is requesting interpretation and guidance regarding the transport of foreign
cylinders tested to US standards.
Background
Linde exports various gases in foreign manufactured cylinders. The cylinders are requalified and marked as required in
49CFR171.23(a)(4). Once the cylinder contents are used, the cylinders may be returned to the US for refilling. The
cylinders being returned are still within the 5 year required requalification period. No changes have been made to the
cylinder after the filling at a Linde fill plant. Product is used and then the cylinder is returned.
May cylinders be returned to a Linde US fill plant that contain residual gas? The cylinders would go directly from the
Question 1
seaport or airport to a Linde facility.
Question 2
May the cylinders containing residual gas be transported from one fill plant to another as long as no modification to the
cylinder or product are made?
A written response at your earliest convenience is appreciated.
Sincerely
Guy Dalton
Guy Dalton
Head of Transport Compliance/Safety
Linde Gas North America LLC
440-251-0303
guy.dalton@linde.com
Linde Gas North America LLC

<<<PAGE 4>>>

Dodd, Alice (PHMSA)
From:
Sent:
Ciccarone, Michael CTR (PHMSA)
To:
Wednesday, July 16, 2014 11:31 AM
Subject:
Hazmat Interps
Attachments:
FW: Interpretation Request - Transport of Foreign Manufactured Cylinders with Residual
DOT Interpretation request - Transport of Foreign Cyls with Residual 07-15-14.doc
Shante and Alice,
Please submit this for a formal letter of interpretation.
Thanks,
Mike
From: guy.dalton@linde.com [mailto:guy.dalton@linde.com]
Sent: Wednesday, July 16, 2014 8:43 AM
To: INFOCNTR (PHMSA)
dan.galowitch@linde.com
Subject: Interpretation Request - Transport of Foreign Manufactured Cylinders with Residual
Please find attached a request for interpretation. I am requesting a written response to the questions include in the
request. Please contact me if you need further information.
Regards,
Guy Dalton
HSE
Fleet Compliance and Safety Manager
Linde North America, Inc.
130 Briar Hill, Painesville, Ohio USA 44077
guy.dalton@linde.com, www.lindeus.com
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