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U.S. Department of Transportation U.S. Department of Transportation Icon United States Department of Transportation United States Department of Transportation

Interpretation Response #06-0140 ([Minnesota Department of Transportation] [Mr. Kevin Kampa])

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

Interpretation Response Details

Response Publish Date:

Company Name: Minnesota Department of Transportation

Individual Name: Mr. Kevin Kampa

Location State: MN Country: US

View the Interpretation Document

Response text:

Jul 18, 2006

Mr. Kevin Kampa                 Reference No. 06-0140
Hazardous Materials Specialist
Minnesota Department
  of Transportation
Office of Freight and
  Commercial Vehicle Operations
3485 Hadley Ave.
Oakdale, MN 55128

Dear Mr. Kampa:

This responds to your letter dated June 9, 2006, regarding the correct proper shipping name for a hydraulically pressurized article that contains a non-flammable gas under the Hazardous Materials Regulations (HMR; 49 CFR Parts 171- 180). Specifically, you ask whether the proper shipping name for such an article under identification number UN3164 would be: (1) Articles, pressurized hydraulic; (2) Articles, hydraulic; or (3) Hydraulic.

The entry corresponding to the identification number UN3164 in the § 172.101 Hazardous Materials Table (HMT) is “Articles, pressurized pneumatic or hydraulic containing non-flammable gas. One of the terms, pneumatic or hydraulic is intended to be? selected, as appropriate, for the material to be described. The intent of combining multiple proper shipping names under one entry in the HMT is to keep the table as short as possible without impairing its effectiveness.

Therefore, the most appropriate proper shipping name for an article in the scenario you describe would be “Articles, pressurized hydraulic.”

I trust this satisfies your inquiry. 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
172.101 Purpose and use of hazardous materials table