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Interpretation Response #03-0029 ([Carleton Technologies, Inc.] [Mr. John Szymanski ])

Below is the interpretation response detail and a list of regulations sections applicable to this response.

Interpretation Response Details

Response Publish Date:

Company Name: Carleton Technologies, Inc.

Individual Name: Mr. John Szymanski 

Location State: NY Country: US

View the Interpretation Document

Response text:

Feb 27 2003


Mr. John Szymanski                Reference No. 03-0029
Design/Development Engineer
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 CFR parts 171-180).  Your letter states that the helium is in non-refillable cylinders with a capacity of two cubic inches, at a pressure of 7,000 psig, and will be transported by motor vehicle.

When transported by highway, § 173.306(a)(1) excepts limited quantities of certain compressed gases from labeling (except when intended for further transportation by air) and the specification packaging requirements when packaged in containers of not more than 4 fluid ounces capacity (7.22 cubic inches or less) except cigarette lighters.  Each package must conform to the general requirements in §§ 173.24 and 173.24a, and may not exceed 30 kg (66 pounds) gross weight.  In addition, shipments of compressed gases packaged in limited quantities must meet all other requirements in the HMR from which they have not been excepted.

I hope this satisfies your request.



Hattie L. Mitchell
Chief, Regulatory Review and Reinvention
Office of Hazardous Materials Standards


Regulation Sections

Section Subject
173.306 Limited quantities of compressed gases