# Carleton Technologies, Inc. — Hazardous Materials Safety Interpretation

- **operation:** document
- **citation:** 03-0029
- **title:** Carleton Technologies, Inc. — Hazardous Materials Safety Interpretation
- **source type:** guidance
- **agency:** Pipeline and Hazardous Materials Safety Administration
- **status:** guidance
- **official:** true
- **published on:** 2003-02-27
- **effective on:** Not available
- **summary:** 03-0029 response to Carleton Technologies, Inc. concerning 173.306.
- **machine formats:** - **json:** https://regulus.evalyn.ai/document/phmsa-interpretation-03-0029.json
- **markdown:** https://regulus.evalyn.ai/document/phmsa-interpretation-03-0029.md
- **app url:** https://regulus.evalyn.ai/document/phmsa-interpretation-03-0029
- **source url:** https://www.phmsa.dot.gov/sites/phmsa.dot.gov/files/legacy/interpretations/Interpretation%20Files/2003/030029.pdf
**body:**

<<<PAGE 1>>>

Transportatic
S. Departme
400 Seventh St., S.W.
Washington, D.C. 20590
FEB 27 2003
Design/Development Engineer
Mr. John Szymanski
Reference No.: 03-0029
Carleton Technologies, Inc.
10 Cobham Drive
Orchard Park. NY 14127-4195
Dear Mr. Szymanski:
This is in response to your letter requesting clarification of the limited quantity exception for
"Helium, compressed, 2.2, UN 1046" under the Hazardous Materials Regulations (HMR; 49
capacity of two cubic inches, at a pressure of 7,000 psig, and will be transported by motor
CFR parts 171-180). Your letter states that the helium is in non-refillable cylinders with a
vehicle.
When transported by highway, § 173.306(a)(1) excepts limited quantities of certain compressed
ackaging requirements when packaged in containers of not more than 4 fluid ounces capacit
gases from labeling (except when intended for further transportation by air) and the specification
(7.22 cubic inches or less) except cigarette lighters. Each package must conform to the general
addition, shipments of compressed gases packaged in limited quantities must meet all other
requirements in 9$ 1/3.24 and 173.24a, and may not exceed 30 kg (66 pounds) gross weight. In
requirements in the HIMR from which they have not been excepted.
I hope this satisfies your request.
Sincerely,
Hathe z. mitches
Hattie L. Mitcheil
Chief, Regulatory Review and Reinvention
Office of Hazardous Materials Standards
173,306
030029

<<<PAGE 2>>>

Feb. 5. 2003 3:17PM
No.0666
P. 2
Carleton Technologies Inc
-EARLETON -,
) Cobham Dri
Telephone 716-662-0006
chard Park New York 14127-415
Corbin
FAX 716-662-0747
$173.306
Limited Quantities
February 5, 2003
03-0029
400 7* Street SW
U.S. Department of Transportation
Attention: DHM-10
Washington, DC 20590-0001
Attention: Edward T. Massullo
USDOT/RSPA, DHM-10
Director, Office of Hazardous Materials Standards
Subject: Request for Letter of Interpretation
Dear Mr. Massullo:
shipped level) and B44637-1 (filled bottle subassembly level) to ship under CFR 49 section 173.306
Carleton Technologies Inc. requests a letter of interpretation on Carleton P/N B44636-3 (assembled,
Limited quantities of compressed gases.
than 4 fluid ounces capacity (7.22 cubic inches or less)..."
My sein by to kin pa leage of empretation more untie pours per 73.08. you eure tore
information pertaining 10 this matter, please call at 716-667-6277.
If you require more
Sincerely.
Design/Development Engineer
John Szymanski
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