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Interpretation Response #05-0045 ([Essex Aerospace and Defense] [Mr. Russell Zavadil])

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

Interpretation Response Details

Response Publish Date:

Company Name: Essex Aerospace and Defense

Individual Name: Mr. Russell Zavadil

Location State: MO Country: US

View the Interpretation Document

Response text:

Mar 10, 2005


Mr. Russell Zavadil                       Reference No. 05-0045
Quality Manager
Essex Aerospace and Defense
8007 Chivvis Drive
St. Louis, MO 63213

Dear Mr. Zavadil:

This is in response to your request for a clarification on the applicability of the Hazardous Materials Regulations (HMR; 49 CFR Parts 171-180) to an oxygen converter that will be mounted onboard ambulances and other emergency response vehicles. You state the converter stores 10 or 25 liters of liquid oxygen that it converts into breathing gas for patients. The vehicles will be operated by Federal, state or local government personnel.

The transport of hazardous materials in government vehicles operated by government personnel solely for non-commercial purposes are not subject to the HMR. However, if the purpose is commercial, or if the government entity offers hazardous materials for transportation to commercial carriers, then the HMR would apply.

I hope this information is helpful. If you need further assistance, please do not hesitate to contact us.



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


Regulation Sections

Section Subject
171.1 Applicability of Hazardous Materials Regulations (HMR) to persons and functions