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Interpretation Response #05-0318 ([Director, Manufacturing] [Mr. Mike Conway])

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

Interpretation Response Details

Response Publish Date:

Company Name: Director, Manufacturing

Individual Name: Mr. Mike Conway

Location State: WA Country: US

View the Interpretation Document

Response text:

Feb 2, 2006


Mr. Mike Conway                    Reference No. 05-0318
General Manager
Trident Agricultural
     Products, Inc.
P.O. Box 1909
Woodland, WA 98674

Dear Mr. Conway:

This responds to your letter dated December 21, 2005, regarding the packaging of toxic by inhalation liquids under the Hazardous Materials Regulations (HMR; 49 CFR Parts 171-180). Specifically, you ask whether liquids described as “Toxic by inhalation liquid, corrosive, n.o.s., 6.1, UN3390, PG I, 8” may be transported in an insulated DOT 412 cargo tank motor vehicle.

The answer is yes. The cargo tanks authorized for a Zone B inhalation hazard material (UN3390) are found in § 173.244 of the HMR, as limited by the applicable special provisions of § 172.102. As prescribed in § 173.244(b), a DOT 412 cargo tank is authorized for a Zone B inhalation hazard material (UN3390). In accordance with Special Provision B14, the cargo tank must be insulated.

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

173.227, 173.244

Regulation Sections

Section Subject
172.101 Purpose and use of hazardous materials table