| Position | Term | Name | Organization |
| CHAIRMAN/MBR | 2005-07-01 to 2007-06-30 | Steven M Tredinnick | Affiliated Engineers Inc |
| VCHM/HANDBOOK SUBCOM CHM/MBR | 2005-07-01 to 2009-06-30 | Gary E Phetteplace | U S Army ERDC- Info Tech Lab |
| SECRETARY/MBR | 2005-07-01 to 2008-06-30 | Kenneth R Collier | Pittsburgh Corning Corp |
| PROGRAM SUBCOM CHM/MBR | 2006-07-01 | Danny A Castellan | University of Windsor |
| RESEARCH SUBCOM CHM/MBR | 2004-07-01 to 2007-06-30 | David W Wade | RDA |
| CORRESPONDING MEMBER | 2006-07-01 | Emil E Friberg | Friberg Associates Inc |
| MEMBER | 2005-07-01 to 2009-06-30 | Alan W Green | CBI |
| MEMBER | 2003-07-01 to 2007-06-30 | Nadar R Jayaraman | Enbridge Gas Distribution Inc |
| MEMBER | 2005-07-01 to 2009-06-30 | Lawrence C Markel | Sentech Inc |
| CORRESPONDING MEMBER | 2006-07-01 | Robert G O'Brien | Washingon State Univ |
| LONG RANGE PLANNING SUBCOMMITTEE/CM | 2004-07-01 | Harold Smith Jr | Braun Utility Service Corp |
| CORRESPONDING MEMBER | 2002-07-01 | Eric B Peyer | Grumman/Butkus Assoc |
| CORRESPONDING MEMBER | 1995-07-01 | Richard E Batherman | Vico Inc |
| CORRESPONDING MEMBER | 1999-07-01 | Lars E Astrand | L Astrand Konsult Ab |
| CORRESPONDING MEMBER | 2005-07-01 | Donald R Bahnfleth | Wernick LLC |
| CORRESPONDING MEMBER | 1999-07-01 | William P Bahnfleth | Pennsylvania State University |
| CORRESPONDING MEMBER | 2003-07-01 | Robert P Connolly | Connolly Associates |
| CORRESPONDING MEMBER | 2006-07-01 | Gary C Debes | |
| CORRESPONDING MEMBER | 2001-07-01 | James S Elleson | Elleson Engineering |
| CORRESPONDING MEMBER | 2003-07-01 | Gustav Foster Jr | Gustav Foster Consulting LLC |
| CORRESPONDING MEMBER | 2000-07-01 | Michael D Gerhardt | |
| CORRESPONDING MEMBER | 2004-07-01 | Lucas B Hyman | Goss Engineering Inc |
| CORRESPONDING MEMBER | 2004-07-01 | Kurt Liebendorfer | The Stellar Group |
| CORRESPONDING MEMBER | 2001-07-01 | Mark M MacCracken | Calmac Manufacturing Corp |
| CORRESPONDING MEMBER | 1998-07-01 | Timothy P McDowell | Thermal Energy Systems Specialists |
| CORRESPONDING MEMBER | 2005-07-01 | Zoltan Magyar | Comfort Consulting Kft |
| CORRESPONDING MEMBER | 2001-07-01 | Kirby P Nelson | |
| CORRESPONDING MEMBER | 2005-07-01 | James E Noren | Advance Tank & Construction Co |
| CORRESPONDING MEMBER | 2003-07-01 | Robert E McCabe | Cornell University Planning Design & Con |
| CORRESPONDING MEMBER | 1998-07-01 | Craig L Patterson | Automatic Switch Co |
| CORRESPONDING MEMBER | 1998-07-01 | David L Pope | Heery International |
| CORRESPONDING MEMBER | 2003-07-01 | Jitendra B Singh | J & P Engineers |
| CORRESPONDING MEMBER | 2001-07-01 | Francis L St John | Applied Engineering Services Inc |
| CORRESPONDING MEMBER | 1998-07-01 | James S Strandberg | J S Strandberg Consulting Engineer's |
| CORRESPONDING MEMBER | 2002-07-01 | James W Young Jr | Dow Chemical Co |
| SUBCOM CHM/MBR | 2002-07-01 to 2006-06-30 | John S Andrepont | The Cool Solutions Company |
| STANDARDS SUBCOM CHM/MBR | 2004-07-01 to 2006-06-30 | Alexander H Sleiman | Dist Energy St Paul Inc |
| INTERNATIONAL MEMBER | 2005-07-01 to 2009-06-30 | Signhild E Gehlin | Swedvac |
| INTERNATIONAL MEMBER | 2005-07-01 to 2009-06-30 | Sidney A Parsons | |
| MEMBER | 2004-07-01 to 2008-06-30 | Burkley M Allen | I C Thomasson Assoc |
| MEMBER | 2005-07-01 to 2009-06-30 | Kevin D Rafferty | Oregon Institute of Technology |
| MEMBER | 2005-07-01 to 2009-06-30 | Anil G Shenoy | The Dow Chemical Co/Fabrication |
| MEMBER | 2003-07-01 to 2007-06-30 | Richard S Sweetser | Exergy Partners Corp |
| ALI COORDINATOR/CM | 2003-07-01 | Gary S Ash | MKC Associates Inc |
| TC WEBMASTER/MEMBER | 2006-07-01 to 2010-06-30 | Victor L Penar | Perma-Pipe |
| CORRESPONDING MEMBER | 1998-07-01 | Bruce E Beddow Jr | B2E Consulting Engineers |
| CORRESPONDING MEMBER | 1998-07-01 | Frederick W Betz | E&A Services |
| CORRESPONDING MEMBER | 2005-07-01 | Robert A Bunn | |
| CORRESPONDING MEMBER | 2002-07-01 | Douglas A Coles | Coles Assoc Ltd |
| CORRESPONDING MEMBER | 1991-07-01 | Eino O Kainlauri | Retired |
| CORRESPONDING MEMBER | 2001-05-15 | Birol I Kilkis | Watts Radiant |
| CORRESPONDING MEMBER | 1994-07-01 | Richard J Kooy | A Epstein and Sons International Inc |
| CORRESPONDING MEMBER | 1999-07-01 | James B Kreutzmann | JBK Consulting |
| CORRESPONDING MEMBER | 2000-07-01 | Sam Kumar | Tulsa Trigen Energy Corp |
| CORRESPONDING MEMBER | 2005-07-01 | Nicholas J Teague | The Stellar Group |
| CORRESPONDING MEMBER | 2000-07-01 | Robert P Thornton | International District Energy Association |
| CORRESPONDING MEMBER | 2002-07-01 | Vladan M Veljovic | District Energy Ltd |
| CORRESPONDING MEMBER | 2005-07-01 | Terrence J Whitehead PE | Enbridge |
| CORRESPONDING MEMBER | 2004-07-01 | Verle A Williams | Utility Services Unlimited Inc |
| STANDARDS LIAISON | 2002-07-01 to 2006-06-30 | David E Knebel | AAON Inc |
