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Interpretation Response #06-0104 ([CP Industries] [Mr. G. A. Hayden, PE])

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

Interpretation Response Details

Response Publish Date:

Company Name: CP Industries

Individual Name: Mr. G. A. Hayden, PE

Location State: PA Country: US

View the Interpretation Document

Response text:

May 12, 2006


Mr. G. A. Hayden, PE                Reference No. 06-0104
CP Industries
2214 Walnut Street
McKeesport, PA 15 132-7098

Dear Mr. Hayden:

This is in response to your April 21, 2006 letter requesting clarification regarding the applicability of the Hazardous Materials Regulations (HMR; 49 CFR Parts 171-180) to the marking of cylinders. Specifically, you ask if a DOT specification cylinder may contain additional Chinese markings as displayed in your attached cylinder drawing.

The answer is yes. Section 178.35(0(6) authorizes additional markings on specification cylinders provided they are made in low stress areas other than the sidewall, not of a size and depth that will create harmful stress concentrations, and do not conflict with any DOT markings.

I hope this information is helpful.



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


Regulation Sections

Section Subject
178.35 General requirements for specification cylinders