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Interpretation Response #10-0100 ([Wilhelmsen Ships Service] [Mr. Dave Finlay])

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

Interpretation Response Details

Response Publish Date:

Company Name: Wilhelmsen Ships Service

Individual Name: Mr. Dave Finlay

Location State: TX Country: US

View the Interpretation Document

Response text:

June 7, 2010




Mr. Dave Finlay

Regional HSSE Manager - Americas

Wilhelmsen Ships Service

9400 New Century Drive

Pasadena, TX 77507

Ref. No.: 10"0100

Dear Mr. Finlay:

This responds to your April 19, 2010 email regarding the applicability of the Hazardous Materials Regulations (HMR; 49 CFR Parts 171"180) to a particular CGA publication. Specifically, you ask whether the HMR requires testing of cylinder valves to be in accordance with the Compressed Gas Association publication, CGA V-9, "Standard for Compressed Gas Cylinder Valves."

The answer is no. Currently, § 171.7(a)(2) of the HMR do not incorporate by reference the CGA V-9 publication. However, the outside of cylinders are required by § 173.301(a)(2) to be visually inspected prior to each filling. Any cylinder having a defective valve or other detrimental damage may not be filled and offered for transportation.

I trust this satisfies your inquiry. Please contact us if we can be of further assistance.


Hattie L. Mitchell

Chief, Regulatory Review and Reinvention

Office of Hazardous Materials Standards

171.7(a)(2), 173.301(a)(2)

Regulation Sections

Section Subject
171.7 Reference material
173.301 General requirements for shipment of compressed gases and other hazardous materials in cylinders, UN pressure receptacles and spherical pressure vessels