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Part V

Department of Transportation

Pipeline and Hazardous Materials Safety Administration

49 CFR Part 192

Pipeline Safety: Standards for Increasing the Maximum Allowable Operating Pressure for Gas Transmission Pipelines; Final Rule




DEPARTMENT OF TRANSPORTATION

Pipeline and Hazardous Materials Safety Administration

49 CFR Part 192

[Docket No. PHMSA-2005-23447]
RIN2137-AE25

Pipeline Safety: Standards for Increasing the Maximum Allowable Operating Pressure for Gas Transmission Pipelines

AGENCY: Pipeline and Hazardous Materials Safety Administration (PHMSA), Department of Transportation (DOT).

ACTION: Final rule.


SUMMARY: PHMSA is amending the pipeline safety regulations to prescribe safety requirements for the operation of certain gastransmission pipelines at pressures based on higher operating stress levels. The result is an increase of maximum allowable operating pressure (MAOP) over that currently allowed in the regulations. Improvements in pipeline technology assessment methodology, maintenance practices, and management processes over the past twenty-five years have significantly reduced the risk of failure in pipelines andnecessitate updating the standards that govern the MAOP. This rule will generate significant public benefits by reducing the number and consequences of potential incidents and boosting the potential capacity and efficiency of pipeline infrastructure, while promoting rigorous life-cycle maintenance and investment in improved pipe technology.

DATES: Effective Date: This final rule takes effect November17, 2008.
Incorporation by Reference Date: The incorporation by reference of a certain publication listed in this rule is approved by the Director of the Federal Register as of November 17, 2008.

FOR FURTHER INFORMATION CONTACT: Alan Mayberry by phone at (202) 366-5124, or by e-mail at alan.mayberry@dot.gov.

SUPPLEMENTARY INFORMATION:

Table of Contents

A. Purpose of the RulemakingB. Background
B.1. Current Regulations
B.2. Evolution in Views on Pressure
B.3. History of PHMSA Consideration
B.4. Safety Conditions in Special Permits
B.5. Codifying the Special Permit Standards
B.6. How to Handle Special Permits and Requests for Special Permits
B.7. Statutory Considerations
C. Comments on the NPRM
C.1. General Comments
C.2.Comments on Specific Provisions in the Proposed Rule
C.2.1. Section 192.7, Incorporation by Reference
C.2.2. Design Requirements
C.2.3. Construction Requirements
C.2.4. Eligibility for and Implementing Alternative MAOP
C.2.5. Operation and Maintenance Requirements
C.3. Comments on Regulatory Analysis
D. Consideration by the Technical Pipeline Safety Standards CommitteeE. The Final Rule
E.1. In General
E.2. Amendment to §192.7–Incorporation by Reference
E.3. New §192.112–Additional Design Requirements
E.4. New §192.328–Additional Construction Requirements
E.5. Amendment to §192.611–Change in Class Location: Confirmation or Revision of Maximum Operating Pressure
E.6. Amendment to §192.619–Maximum Allowable Operating PressureE.7. New §192.620–Operation at an Alternative MAOP
E.7.1. §192.620(a)–Calculating the Alternative MAOP
E.7.2. §192.620(b)–Which Pipelines Qualify
E.7.3. Sec. §192.620(c)(1), (2), and (3)–How an Operator Selects Operation Under This Section
E.7.4. §192.620(c)(4)–Initial Strength Testing
E.7.5. §192.620(c)(5)–Operation and Maintenance
E.7.6. §192.620(c)(6)–NewConstruction and Maintenance Tasks
E.7.7. §192.620(c)(7)–Recordkeeping
E.7.8. §192.620(c)(8)–Class Upgrades
E.8. §192.620(d)–Additional Operation and Maintenance Requirements
E.8.1. §192.620(d)(1)–Threat Assessments
E.8.2. §192.620(d)(1)–Public Awareness
E.8.3. §192.620(d)(2)–Emergency Response
E.8.4. §192.620(d)(3)–Damage Prevention
E.8.5. §192.620(d)(4)–Internal...
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