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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 #18-0007

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

Interpretation Response Details

Response Publish Date:

Company Name: Kennedys CMK

Individual Name: Caroline Myers

Location State: NY Country: US

View the Interpretation Document

Response text:

Caroline Myers
Kennedys CMK
570 Lexington Avenue, 8th Floor
New York, NY 10022

Reference No. 18-0007

Dear Ms. Myers:

This letter is in response to your January 3, 2018, email requesting clarification of the Hazardous Materials Regulations (HMR; 49 CFR Parts 171-180) applicable to limited quantity markings. Specifically, you ask if it is permissible to mark a package with the limited quantity "Y" mark, which is designated for air transportation and authorized in § 172.315(b), if the package is transported by a mode other than aircraft. You also ask about additional requirements for the permissive use of this marking.

The answer is yes, provided the package meets all applicable limited quantity provisions and—in accordance with § 172.315(a)—conforms to the authorized substance and article provisions and the inner and outer package quantity limits detailed in § 173.27(f) of the HMR.

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


Dirk Der Kinderen
Chief, Standards Development
Standards and Rulemaking Division

Regulation Sections

Section Subject
172.315 Limited quantities