USA Banner

Official US Government Icon

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure Site Icon

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

U.S. Department of Transportation U.S. Department of Transportation Icon United States Department of Transportation United States Department of Transportation

Interpretation Response #04-0045 ([Western International Gas & Cylinder, INC] [Ms. Kathy McKenzie])

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

Interpretation Response Details

Response Publish Date:

Company Name: Western International Gas & Cylinder, INC

Individual Name: Ms. Kathy McKenzie

Location State: TX Country: US

View the Interpretation Document

Response text:

Oct 26, 2004


Ms. Kathy McKenzie                Reference No. 04-0045
Safety and Compliance Director
Western International Gas & Cylinder, INC.
P.O. Box 668
7173 Highway 159E
Beliville, TX 77418

Dear Ms. McKenzie:

This is in response to your February 25, 2004 letter requesting clarification regarding the
requalification marking requirements for specification cylinders under the Hazardous Materials Regulations (HMR; 49 CFR Parts 171-180). Specifically, you ask if your requalification markings may be smaller than the size requirements specified under § 180.213(e). Please accept my apology for our delay in responding to your letter.

Section 180.213(d) (1) allows modification of requalification marking requirements (e.g., smaller marking size) under the conditions of an approval. The procedure for applying for an approval is specified in § 107.705. There are other options that you may want to consider. One option would be to attach a metal plate with the applicable requalification markings. Another option would be to remove the older requalification markings to create space for the new requalification markings.

I hope this information is helpful. Please contact us if you require additional assistance.



Hattie L. Mitchell
Chief, Regulatory Review and Reinvention
Office of 1-lazardous Materials Standards


Regulation Sections

Section Subject
180.213 Requalification markings