Interpretation Response #01-0119 ([White Tank and Truck Repai] [Mr. Clay Sutter])
Below is the interpretation response detail and a list of regulations sections applicable to this response.
Interpretation Response Details
Response Publish Date:
Company Name: White Tank and Truck Repai
Individual Name: Mr. Clay Sutter
Location State: IL Country: US
View the Interpretation Document
Response text:
MAY 17, 2001
Mr. Clay Sutter Ref. No. 01-0119
Shop Foreman
White Tank and Truck Repair
P.O. Box 469
Belleville, Illinois 62222
Dear Mr. Sutter:
This responds to your May 13, 2001 letter concerning specification requirements for MC 306 cargo tanks authorized for the transportation of hazardous materials by the Hazardous Materials Regulations (49 CFR Parts 171-180; HMR). Specifically, you ask about damage protection requirements for a rubber vapor boot and connecting metal piping installed on the top of an
MC 306 cargo tank.
Generally, the HMR permit a rubber attachment, such as the vapor boot pictured in your letter, to extend beyond a cargo tank's accident damage protection device. However, metal piping that extends above the accident damage protection may result in leakage of the lading if struck during a rollover. Any device that could result in leakage of lading if struck during a rollover may not extend beyond an accident damage protection device unless it is equipped with a stop valve and a sacrificial device such as a shear section. The sacrificial device must be located in the piping system outboard of the stop valve and within the accident protection device to prevent any accidental loss of lading. If the metal piping pictured in your letter is not equipped with a stop valve and a sacrificial device, then the cargo tank should be removed from service until appropriate modifications to the piping are completed.
I hope this information is helpful. If you have further questions, please do not hesitate to contact this office.
Sincerely,
Thomas G. Allan
Senior Transportation Regulations Specialist
Office of Hazardous Materials Standards
180.405
Regulation Sections
| Section | Subject |
|---|---|
| 180.405 | Qualification of cargo tanks |