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Interpretation Response #10-0160 ([Empire Airlines, Inc.] [Mr. Bradley J. Slater])

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

Interpretation Response Details

Response Publish Date:

Company Name: Empire Airlines, Inc.

Individual Name: Mr. Bradley J. Slater

Location State: ID Country: US

View the Interpretation Document

Response text:

September 9, 2010




Mr. Bradley J. Slater

Director of Safety

Empire Airlines, Inc.

11559 N. Atlas Road

Hayden, Idaho 83835

Ref. No. 10-0160

Dear Mr. Slater:

This responds to your July 23, 2010 request for clarification of the Hazardous Materials Regulations (HMR; 49 CFR Parts 171-180). Specifically, you ask if the edges of hazardous materials warning labels may overlap with adjacent labels so long as all of the text, symbols, and borders of each label remain clearly visible and distinct.

In accordance with § 172.406, labels must be clearly visible and may not be obscured by markings or attachments. Labels may not cover or overlap one another. When multiple labels are required under § 172.406(c), they must be placed next to each other. Placement of multiple labels conforms to this requirement if labels are within 150 mm (6 inches) of one another. In addition, labels must also conform to label specifications in § 172.407.

I hope this answers your inquiry. If you need additional assistance, please contact this Office at 202-366-8553.


Ben Supko

Acting Chief, Standards Development

Office of Hazardous Materials Standards

172.406, 172.407

Regulation Sections

Section Subject
172.406 Placement of labels
172.407 Label specifications