American Gas Association

American Pipeline Contractors Association

American Society of Mechanical Engineers

Canadian Gas Association

Distribution Contractors Association

Gas Processors Association

International Liquid Terminals Association

Louisiana Pipeliners Association

North American Energy Standards Board

National Association of Pipe Distributors

Northwest Gas Association

Pipe Line Contractors Association

Pipeline Research Council International

America’s Natural Gas Alliance

American Public Gas Association

Canadian Energy Pipeline Association

Center for LNG


Florida Energy Pipeline Association


Gas Processors Association of Canada

Interstate Natural Gas Association of America

MEA Energy Association

National Association of Pipe Coating Applicators

Northeast Gas Association

The Pipeliner’s Association of Houston

Pipe Line Contractors Association of Canada

Southern Gas Association

Association of Oil Pipelines

American Petroleum Institute

Common Ground Alliance

Colorado Oil & Gas Association


Gas Machinery Research Council

Houston GPA

International Pipeline & Offshore Contractors Association

National Association of Corrosion Engineers

National Association of Regulatory Utility Commissioners

National Utility Contractors Association

Pipeline and Hazardous Materials Safety Association

Pigging Products & Services Association

Society of Petroleum Engineers