USA Banner

Official US Government Icon

Official websites use .gov
A .gov website belongs to an official government organization in the United States.

Secure Site Icon

Secure .gov websites use HTTPS
A lock ( ) or https:// means you’ve safely connected to the .gov website. Share sensitive information only on official, secure websites.

U.S. Department of Transportation U.S. Department of Transportation Icon United States Department of Transportation United States Department of Transportation

Interpretation Response #PI-74-004 ([Dallas Engineering, Inc.] [Dois D. Dallas])

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

Interpretation Response Details

Response Publish Date:

Company Name: Dallas Engineering, Inc.

Individual Name: Dois D. Dallas

Location State: ND Country: US

View the Interpretation Document

Response text:

January 24, 1974

Mr. Dois D. Dallas

Petroleum Engineer

Dallas Engineering, Inc.

P.O. Box 594

Tioga, ND 58852

Dear Mr. Dallas:

In your letter of January 17, 1974, you ask what protection should be provided for insulated 3/4-inch metallic riser pipes. Risers are to be coated and cathodically protected as required by Section 192.455. The level of protection must meet one or more of the criteria contained in Section 192.463. The frequency for monitoring service risers is covered by Section 192.465.

We trust this answers your question. If you desire any further information, please advise.



Joseph C. Caldwell


Office of Pipeline Safety

Regulation Sections

Section Subject
192.465 External corrosion control: Monitoring