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 #25-0124

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

Interpretation Response Details

Response Publish Date:

Company Name: The Whitaker Company

Individual Name: Mr. Johnny Johnson

Location State: GA Country: US

View the Interpretation Document

Response text:

April 23, 2026

Mr. Johnny Johnson
The Whitaker Company
1557 Marietta Road NW
Atlanta, GA  30318

Reference No. 25-0124

Dear Mr. Johnson:

This is in response to your September 17, 2025, letter requesting clarification of the Hazardous Materials Regulations (HMR; 49 CFR Parts 171-180) applicable to the transportation of Class 9 hazardous materials in a bulk packaging. Specifically, you ask—when transported by ground—may a hazardous materials described as a Class 9 be offered for transportation in packagings that you describe as non-specification intermediate bulk containers (IBCs), i.e., bulk packagings that are not constructed in accordance [AP1]with 49 CFR Part 178, Subparts N and O of the HMR?

Yes. When a hazardous material listed in the § 172.101 Hazardous Materials Table (HMT) references § 173.241 for bulk packaging, the material may be transported in "non-DOT specification portable tanks suitable for transport of liquids." Therefore, a bulk packaging that resembles an IBC but does not meet a Department of Transportation (DOT) specification may be considered a "non-DOT specification portable tank" provided it meets the definition of a bulk packaging in § 171.8 and is suitable for the transportation of liquids.

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

Sincerely,

Alexander Wolcott
Acting Chief, Regulatory Review and Reinvention Branch
Standards and Rulemaking Division

173.241

Regulation Sections