Interpretation Response #98-0200 ([SRC Engineers, Inc.] [Mr. Stephen R. Callegari, Sr.])
Below is the interpretation response detail and a list of regulations sections applicable to this response.
Interpretation Response Details
Response Publish Date:
Company Name: SRC Engineers, Inc.
Individual Name: Mr. Stephen R. Callegari, Sr.
Location State: LA Country: US
View the Interpretation Document
Response text:
Sep 21, 1998
Mr. Stephen R. Callegari, Sr. Ref. No. 98-0200
President
SRC Engineers, Inc.
P.O. Box 81903
Lafayette, LA 70598-1903
Dear Mr. Callegari:
This is in response to your letter requesting clarification of the requirements for valves, nozzles, piping, and gauging devices for IM 101 portable tanks in 49 CFR 178.270-12(a). Specifically, you asked if a 24-inch inspection opening, located below the normal liquid level of the tank, is required to be fitted with a manually operated stop valve.
The answer is no. Paragraph (a) requires all tank nozzles, thermometer wells and inspection openings be fitted with manually operated stop valves located as near the shell as practicable either internal or external to the shell. However, the last sentence states, "A tank nozzle installed for a thermometer well or inspection opening need not be provided with a manually operated stop valve."
I hope this information is helpful. If we can be of further assistance, please contact us.
Sincerely,
Hattie L. Mitchell
Chief, Regulatory Review and Reinvention
Office of Hazardous Materials Standards
178.270-12