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Interpretation Response #06-0033 ([Mr. Christian W. Solum])

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. Christian W. Solum

Location State: SC Country: US

View the Interpretation Document

Response text:

Mar 1, 2006


Mr. Christian W. Solum                 Reference No. 06-0033

Building 704-3N, Rm S111D

Aiken, SC 29808

Dear Mr. Solum:

This is in response to your February 6, 2006 letter requesting clarification of the Hazardous Materials Regulations (HMR; 49 CFR Parts 171-180). Specifically, you ask if a limited quantity Class 7 (Radioactive) material could also meet the definition of a Class 9 (Miscellaneous) materials in accordance with the HMR.

The answer is no. For the purposes of the HMR, a Class 9 material is defined as "a material which presents a hazard during transportation but which does not meet the definition of any other hazard class." See § 173.140. The material in question does not meet the definition of a Class 9 material because it meets the definition of another hazard class.

I hope this information is helpful.



John A. Gale

Chief Standards Development

Office of Hazardous Materials Standards


Regulation Sections

Section Subject
173.140 Class 9-Definitions