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Interpretation Response #PI-92-032 ([Minnesota Department of Public Safety] [Brian E. Pierzina])

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

Interpretation Response Details

Response Publish Date:

Company Name: Minnesota Department of Public Safety

Individual Name: Brian E. Pierzina

Location State: MN Country: US

View the Interpretation Document

Response text:

July 16, 1992

Mr. Brian E. Pierzina

Senior Engineer

Office of Pipeline Safety

Minnesota Department of Public Safety

175 Aurora Avenue

St. Paul, MN 55103-2356

Dear Mr. Pierzina:

I am responding to your letter of June 29, 1992, to George W. Tenley, Jr., about the uprating requirements of Subpart K of 49 CFR Part 192.

Specifically, you asked whether § 192.557(b)(6) applies only when a low pressure distribution system is uprated to a high pressure distribution system. Because § 192.557(b)(6) requires the installation of service regulators, the purpose of this regulation is to require proper pressure controls when a low pressure distribution system is uprated to a high pressure distribution system. As these regulators would already be in place on high pressure distribution systems, § 192557(b)(6) does not apply to the uprating of a high pressure distribution system.

Sincerely,

/signed/

Cesar De Leon

Director, Regulatory Programs

Office of Pipeline Safety

Regulation Sections

Section Subject
192.557 Uprating: Steel pipelines to a pressure that will produce a hoop stress less than 30 percent of SMYS: plastic, cast iron, and ductile iron pipelines