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DOT/PHMSA RIN: 2137-AE25 Publication ID: Spring 2009 
Title: Pipeline Safety: Standards for Increasing the Maximum Allowable Operating Pressure for Gas Transmission Pipelines 
Abstract: This rulemaking would allow operation of certain steel gas transmission pipelines at pressures based on higher stress levels, resulting in an increase of maximum allowable operating pressure (MAOP) over that currently allowed in the regulations. The rulemaking would also require a new pipeline to meet more rigorous design and construction standards as a condition for an operator to calculate the MAOP based on higher stress levels. The rulemaking would also require the operator of a new or existing pipeline operating at the increased MAOP to comply with added operation and maintenance requirements. 
Agency: Department of Transportation(DOT)  Priority: Economically Significant 
RIN Status: Previously published in the Unified Agenda Agenda Stage of Rulemaking: Completed Actions 
Major: Yes  Unfunded Mandates: No 
CFR Citation: 49 CFR 192   
Legal Authority: 49 USC 60102   
Legal Deadline:  None
Timetable:
Action Date FR Cite
NPRM  03/12/2008  73 FR 13167   
NPRM Comment Period End  05/12/2008    
NPRM; Extension of Comment Period  05/12/2008  73 FR 26954   
NPRM Extended Comment Period End  05/19/2008    
Final Rule  10/17/2008  73 FR 62148   
Final Rule Effective  11/17/2008    
Final Action/stays the effective date 12/01/2008  12/01/2008  73 FR 72737   
Final Action Effective  12/22/2008    
Additional Information: Docket No. PHMSA-05-23447
Regulatory Flexibility Analysis Required: No  Government Levels Affected: None 
Small Entities Affected: No  Federalism: No 
Included in the Regulatory Plan: No 
RIN Information URL: www.regulations.gov   Public Comment URL: www.regulations.gov  
RIN Data Printed in the FR: No 
Agency Contact:
John A. Gale
Transportation Regulations Specialist
Department of Transportation
Pipeline and Hazardous Materials Safety Administration
1200 New Jersey Avenue SE,
Washington, DC 20590
Phone:202 366-0434
Email: john.gale@dot.gov