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Interpretation Response #02-0218 ([Alliant Techsystems, Twin Cities Arsenal] [Christopher J. Widman])

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

Interpretation Response Details

Response Publish Date:

Company Name: Alliant Techsystems, Twin Cities Arsenal

Individual Name: Christopher J. Widman

Location State: MN Country: US

View the Interpretation Document

Response text:

Dec 11, 2002

Mr. Christopher J. Widman                    Reference No. 02-0218
Explosives Transportation Specialist
Alliant Techsystems
Twin Cities Arsenal
New Brighton, MN 55112

Dear Mr. Widman:

This responds to your letter regarding a manufacturer's classification of explosives under the Hazardous Materials Regulations (HMR; 49 CFR Parts 171-180).  Specifically, you inquire whether Cartridges for small arms with inert projectiles, each not exceeding 50 caliber but containing small amounts of pyrotechnics (tracer material), may be classed by a manufacturer as Division 1.4S under § 173.56(h).

The answer is yes, provided the projectiles with the tracer material contains no additional pyrotechnic or incendiary material in their composition.  Under these conditions, the cartridges may be classed, without further approval, by the manufacturer as Division 1.4S under the conditions specified in § 173.56(h).

I trust this satisfies your request.  Please contact us if we can be of further assistance.


Hattie L. Mitchell
Chief, Regulatory Review and Reinvention
Office of Hazardous Materials Standards


Regulation Sections

Section Subject
173.56 New explosives-definition and procedures for classification and approval