Interpretation Response #PI-71-059 ([Sellers & Sellers] [Patricia Sellers])

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

Interpretation Response Details

Response Publish Date: 07/02/1971

Company Name: Sellers & Sellers

Individual Name: Patricia Sellers

Location State: OK Country: US

View the Interpretation Document

Response text:

July 2, 1971

Miss Patricia Sellers
Sellers & Sellers
Attorneys at Law
202 Security Building
Sapulpa, Oklahoma 74066

Dear Miss Sellers:

This is in reply to your letter of June 17, 1971, requesting safety standards pertaining to pipelines
transporting liquid hazardous commodities.

The Department of Transportation has in effect safety regulations covering the design, construction,
inspection, testing, operation and maintenance of pipelines engaged in the transporting of liquid
hazardous commodities in interstate and foreign commerce. I have enclosed a copy of these
regulations entitled, "Part 195 - Transportation of Liquids by Pipeline," along with the current
amendments to the regulations.

Part 195 pertains to pipelines of all sizes. The formula for internal pressure design is contained in
Section 195.106 and that formula takes into consideration the stresses relative to size. That is, if all
other variables in the formula, such as wall thickness, yield strength and seam joint factors are constant,
a large diameter pipe cannot operate at as high a pressure as a small diameter pipe.

Please contact me if I can be of any further assistance.

Sincerely,

Frank B. Fulton
Chief, Technical Division
Office of Pipeline Safety

Regulation Sections