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

Interpretation Response #24-0100

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

Interpretation Response Details

Response Publish Date:

Company Name: Mann Energy Services

Individual Name: Mitchell Rumple

Location State: ND Country: US

View the Interpretation Document

Response text:

December 20, 2024

Mitchell Rumple
EHS Director 
Mann Energy Services
12257 26F St. NW
Watford City, ND  58854

Reference No. 24-0100

Dear Mr. Rumple:

This letter is in response to your October 19, 2024, email requesting clarification of the Hazardous Materials Regulations (HMR; 49 CFR Parts 171-180) applicable to markings on cargo tanks. Specifically, you ask whether the "Emergency Shutoff" marking requirement provided in § 172.328(d) permits the use of a hyphen in the word shutoff as follows: "SHUT-OFF". In a follow-up email, you also provided a picture of the scenario you described.

The answer is yes. Although the required text of "Emergency Shutoff" provided in § 172.328(d) does not include a hyphen in the word shutoff, it is the opinion of this Office that inserting a hyphen as described is not contrary to the intent of the requirement and does not cause confusion, alter, or diminish the meaning or effectiveness of the marking.

I hope this information is helpful. Please contact us if we can be of further assistance.

Sincerely,

Dirk Der Kinderen
Chief, Standards Development Branch
Standards and Rulemaking Division

172.328(d)

Regulation Sections

Section Subject
172.328 Cargo tanks