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Fact Sheet

Gas Transmission Integrity Management


The Pipeline Safety Improvement Act of 2002 requires operators of transmission pipelines to establish an integrity management program in high density population areas. The U.S. Department of Transportation (DOT) subsequently issued a rule for integrity management of gas transmission pipelines in high-consequence areas, which became effective on February 14, 2004. Baseline assessments for covered pipelines must be completed by December 17, 2012. Reassessments for covered pipelines must be conducted within 7 years.


Plastic Pipe Database Collection Initiative

A group of representatives of federal and state regulatory agencies and the natural gas and plastic pipe industries have come together and formed The Plastic Pipe Data Collection Initiative (PPDC).


PPDC Status Reports

Status Reports are issued after each PPDC meeting.


PPDC Forms

These are the downloadable forms to submit data to the PPDC and to volunteer. 

Please use the Negative Report Form when you have no failures to report and still want to remain an active submitter.


These PPDC Definitions explain how to complete the report form (see below for download link)


Gas Facts

Gas Facts is the comprehensive statistical record of the natural gas industry, containing 2007 data detailing energy reserves, natural gas supply, consumption, underground storage, distribution and transmission, end-users, sales, transportation volumes, revenues, prices, appliance and housing data, finance and personnel.


Pipeline Capacity

The U.S. natural gas pipeline grid is an integrated system of interstate and intrastate transportation that has moved gas to and from nearly any location in the lower-48 states.


Distribution Integrity Management Program (DIMP)

AGA will continue its advocacy efforts on this critical issue to ensure the final regulation is reasonable, practicable, and cost-effective for operators.


Pipeline and Informed Planning Alliance (PIPA)

Partnering to Further Enhance Pipeline Safety In Communities Through Risk-Informed Land Use Planning
Final Report of Recommended Practices

Presentations from the PIPA Mid-Course Meeting - July 9-10, 2008


Safety Alerts – including Federal Advisory Bulletins

PHMSA uses advisory bulletins to inform affected pipeline operators and Federal and state pipeline safety personnel of matters that have the potential of becoming safety or environmental risks.


PHMSA Interpretations Resulting from GPTC Requests

The GPTC periodically requests interpretations from PHMSA regarding CFR 49 Parts 191 and 192 regulations. The requests are processed through the committee's consensus process and are official requests from the GPTC. Posted below as they become available are the GPTC requests and PHMSA interpretations.

2009 Requests/Interpretations:

Fact Sheet

Piping Materials Library


At its inception, the AGA Plastics Materials Committee (PMC) established a goal to provide member companies with various means to help them enhance the “integrity” of their underground plastic pipe distribution systems. By “integrity” we mean the safety, security, robustness, efficiency and very long term trouble-free performance of plastic natural gas piping systems.

Fact Sheet

Natural Gas: Rewriting Our Energy Future

Our nation's abundance of clean natural gas provides an incredible opportunity to drive economic growth, while protecting the environment and boosting national energy security. Natural Gas: Rewriting Our Energy Future details a vision of market stability ushered in by our domestic energy supply and highlights the steps taken by America's natural gas utilities to deliver this energy source to homes and businesses safely and reliably wh


MAOP Verification and Pressure Testing for Transmission Pipelines

AGA developed this webpage to compile information available on MAOP record verification and testing. The information presented has been developed by AGA, government entities, and other pipeline safety stakeholders. The information is already in the public domain. AGA assertively supported the MAOP verification and testing provisions in the Pipeline Safety Act of 2011. The gas transmission pipeline structure is very complex. The diversity of the transmission pipe is so complex that no single process will provide solutions for every pipeline operator.



Physical and cyber infrastructure security issues are top advocacy priorities for AGA’s members.


Pipeline Safety

Safety is the core value for America's natural gas utilities. The natural gas industry operates an extensive system of 2.5 million miles of distribution and transmission pipelines that stretch across the country to provide service to more than 177 million Americans. The design, construction, operation, inspection and maintenance of all operating pipelines are subject to state and federal regulations and requirements. According to the U.S. Department of Transportation, pipelines are the safest, most environmentally-friendly and most efficient and reliable mode of transporting natural gas.