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 #06-0147 ([Mr. Patrick F. Reilly ])

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

Interpretation Response Details

Response Publish Date:

Company Name:

Individual Name: Mr. Patrick F. Reilly 

Location State: PA Country: US

View the Interpretation Document

Response text:

Jul 27, 2006


Mr. Patrick F. Reilly                 Reference No. 06-0147
919 Parkview Road
Moscow, PA 18444

Dear Mr. Reilly:

This responds to your June 29, 2006 letter requesting clarification on § 171.7 Reference material, materials incorporated by reference into the Hazardous Materials Regulations (HMR; 49 CFR 171-180). Specifically, you ask whether the “Association of American Railroads, AAR Manual of Standards and Recommended Practices, Section C-Part III, Specification for Tank Cars, Specification M-1002, December 2000 edition” referenced in § 171.7 is the most current version.

The AAR standard you reference was updated as of December 1, 2003. However, the updated standard has not been incorporated by reference into the HMR. Therefore, for purposes of the HMR, the 2000 edition referenced in § 171.7 must be used.

I hope this answers your inquiry.



John A. Gale
Chief, Standards Development
Office of Hazardous Material Standards


Regulation Sections

Section Subject
171.7 Reference material