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Interpretation Response #10-0123 ([Cart, Inc.] [Mr. Sam Cook])

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

Interpretation Response Details

Response Publish Date:

Company Name: Cart, Inc.

Individual Name: Mr. Sam Cook

Location State: GA Country: US

View the Interpretation Document

Response text:

July 8, 2010




Mr. Sam Cook

Product Manager

Cart, Inc.

1300 Airport Drive

Ballground, GA 30107

Ref. No.: 10-0123

Dear Mr. Cook:

This letter responds to your June 8, 2010 email regarding the transport of live fish under the Hazardous Materials Regulations (HMR; 49 CFR Parts 171-180). Specifically you request confirmation on the use of DOT 4L cylinders to continuously feed tanks containing live fish.

As provided by § 173.302(c), an authorized cylinder containing oxygen continuously fed to tanks containing live fish may be offered for transportation and transported in accordance with the HMR. Cylinders containing non-liquefied compressed oxygen must be offered for transport in accordance with the requirements of §§ 173.301, and 173.302. Refrigerated liquefied oxygen must be offered for transport in accordance with the requirements of § 173.316. Authorized cylinders containing oxygen, refrigerated liquid, used to supply oxygen to tanks for the transport of live fish, are considered an integral part of a process system and are excepted from the HMR under 173.320(b)(2).

I hope this answers your inquiry. If you have further questions, please do not hesitate to contact this office.


Charles E. Betts

Chief, Standards Development

Office of Hazardous Materials Standards

173.302, 173.301

Regulation Sections

Section Subject
173.202 Non-bulk packagings for liquid hazardous materials in Packing Group II
173.301 General requirements for shipment of compressed gases and other hazardous materials in cylinders, UN pressure receptacles and spherical pressure vessels