Interpretation Response #07-0217 ([Advance Engineered Products, Ltd.] [Mr. Rattan Bahia])
Below is the interpretation response detail and a list of regulations sections applicable to this response.
Interpretation Response Details
Response Publish Date:
Company Name: Advance Engineered Products, Ltd.
Individual Name: Mr. Rattan Bahia
Country: CA
View the Interpretation Document
Response text:
February 25, 2008
Mr. Rattan Bahia
Advance Engineered Products, Ltd.
144 Henderson Drive,
Regina, SK. Canada S4N 5P7
Ref. No. 07-0217
Dear Mr. Bahia:
This responds to your November 15, 2007 letter and follow-up telephone conversations requesting clarification of the general design requirements for structural integrity of specification DOT cargo tank motor vehicles under the Hazardous Materials Regulations (HMR; 49 CFR Parts 171-180). Your questions are paraphrased and answered as follows:
Q. May the test in § 178.347-1(d)(9)(iv) pertaining to evaluating the strength of a weld seam in a bulkhead be used to satisfy the requirements for calculating the maximum design stress of a cargo tank specified in § 178.345-3(a)(3)?
A. No. The physical test required to determine the strength of a weld seam in a bulkhead under § 178.347-1(d)(9)(iv) in and of itself is not appropriate for the calculation of the maximum design stress for conditions described in paragraphs (b) and (c) of § 178.345-3.
Q. Is § 178.345-3(b) applicable only to cargo tanks that are designed, constructed, and certified to Section VIII of the ASME Code?
A. No. Section 178.345-3(b) applies to all cargo tanks built to Specification DOT 406, DOT 407, and DOT 412 requirements.
I hope this information is helpful. Please contact us if you require additional assistance.
Sincerely,
John A. Gale
Chief, Standards Development
Office of Hazardous Materials Standards
178.345-3, 178.347-1
Regulation Sections
| Section | Subject |
|---|---|
| 178.345-3 | Structural integrity |
| 178.347-1 | General requirements |