• ABMA - American Boiler Manufacturers Association
www.abma.com
• ASME - American Society of Mechanical Engineers
www.asme.org
• The National Board of Boiler & Pressure Inspectors
www.nationalboard.org
• TSSA
www.tssa.org
• Canadian Standards Council
www.csa.ca
• Enbridge
www.enbridge.com
• Union Energy
www.unionenergy.com
• TUV Rheinland of North America, Inc.
www.us.tuv.com
• Union Gas Energy Efficiency program & Incentives
http://www.uniongas.com/largebusiness/energyconservation/