Established in 1996 in California, USA, CAL2CAL is a software products and technology consulting company, with offices in USA, India, Canada, UK and Australia. It develops products, provides professional services and technology consulting for local and state governments, public health agencies, social service agencies, multi-lateral agencies and the private sector.CAL2CAL is a member of the HL 7 organization and is actively involved in its activities. It has been retained by the Los Angeles County, State of California and Southern Nevada Health District to implement HL 7 standards based architecture and systems. We have published and presented in international conferences on using HL 7 to promote integration and interoperability in healthcare informatics. A paper presented by us in the HL 7 conference in Taiwan in 2005 won the best paper award.