<p> HL7 Milestones</p><p>. March 1987 – held first organizing meeting at the Hospital of the University of Pennsylvania . October 1987 – Published version 1.0 . February 1989 – Conducting the first HL7 demonstration at AHA’s HIMSS Annual conference . September 1988 – Published version 2.0 . June 1990 – Published version 2.1 . May 1991 – Published the first Implementation Support Guide . October 1991 – Opened HL7’s first headquarters office (in Ann Arbor, Michigan) . 1991 – HL7 becomes a member of the American National Standards Institute . March 1992 – HL7 becomes a charter member of ANIS’s Healthcare Informatics Standards Planning Panel (HISPP) in March 1992 . June 12, 1994 – HL7 becomes an ANSI accredited Standards Developing Organization . December 1994 – Published version 2.2 . September 1995 – HL7 published the Version 2.2 Implementation Support Guide . February 8, 1996 – Version 2.2 receives approval as an ANSI standard, becoming the first in the health care domain to receive this accreditation . April 1997 – Published Version 2.3 . May 1997 – HL7 Version 2.3 receives ANSI approval . January 1998 – “Health Level Seven Messaging over Component Technologies” developed by the Object Brokering Technologies Special Interest Group, is successfully balloted as an information document . April 1998 – The Arden Syntax group joints HL7 under the auspices of the Decision Support Special Interest Group . September 1998 – The Clinical Context Object Workgroup (CCOW) joins HL7 as the Visual Integration Special Interest Group . February 1999 – Version 3 is first demonstrated at the HIMSS Exhibit . April 1999 – Version 2.3.1 receives ANSI approval . July 26, 1999 – CCOW, Version 1.0 receives ANSI approval . July 26, 1999 – Arden Syntax v2.0 receives ANSI approval . March 15, 2000 – CCOW, Version 1.1 receives ANSI approval . September 21, 2000 – CCOW, Version 1.2 receives ANSI approval . October 6, 2000 – Version 2.4 receives ANSI approval . November 14, 2000 – Clinical Document Architecture, Release 1 receives ANSI approval . June 16, 2001 – CCOW, Version 1.3 receives ANSI approval . August 9, 2002 – CCOW, Version 1.4 receives ANSI approval . December 16, 2002 – Arden Syntax V2.1 receives ANSI approval . April 1, 2003 – HL7’s EHR System Functional model is registered as a DSTU with ANSI . June 4, 2003 – HL7 Version 2: XML Encoding Syntax, Release 1 receives ANSI approval . June 6, 2003 – Version 2.5 receives ANSI approval . December 17, 2003 – The RIM becomes an ANSI standard . August 3, 2004 – CCOW Version 2.5 receives ANSI approval . August 17, 2004 –HL7 Structured Product Labeling, Release 1.0 receives ANSI approval . April 21, 2005 – Clinical Document Architecture, Release 2 receives ANSI approval . April 25, 2005 – Arden Syntax Version 2.5 receives ANSI approval</p>