HVAC Design Services' 62.1-2004 Comply provides calculation programs and "optimization" procedures for compliance with ANSI/ASHRAE Standard 62.1-2004, "Ventilation Rate Procedure." Proprietary "optimization" procedures assure that the prescribed outdoor air quantities are being met, while also assuring that the outdoor air rates are not excessive. The company says its "Optimization" feature can save significant energy and operating costs over the life of a facility. Note: Portions of the programs, tables, and design information include excerpts from ANSI/ASHRAE 62.1-2004: "© 2005 American Society of Heating, Refrigeration and Air-Conditioning Engineers, Inc. (www.ashrae.org) Used by permission."