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Interpretation Response #05-0266 ([Fire Protection Certification] [Mr. Edward O'Brien])

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

Interpretation Response Details

Response Publish Date:

Company Name: Fire Protection Certification

Individual Name: Mr. Edward O'Brien

Location State: MD Country: US

View the Interpretation Document

Response text:

Nov 21, 2005


Mr. Edward O'Brien                      Reference No. 05-0266
Fire Protection Certification
8719 Pete Wiles Road
Middletown, MD 21769

Dear Mr. O’Brien:

This responds to your letter concerning the cylinder requalification marking requirements under the Hazardous Materials Regulations (HMR; 49 CFR Parts 171-180). Specifically, you ask if a pressure sensitive label displaying the requalification markings may be placed on the sidewall of a composite (fiber wrapped) cylinder used as a fire extinguisher.

Section 180.213(c)(1) authorizes a cylinder used as a fire extinguisher to be marked by using a pressure sensitive label. It is permissible to place the label on the sidewall of a cylinder. Stamping the markings on the cylinder sidewall or any part of the fiber wrapped surface is prohibited.

I trust this satisfies your request.



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


Regulation Sections

Section Subject
180.213 Requalification markings