TheAir-Conditioning and Refrigeration Technology Institute’s (ARTI, Arlington, VA) 21-CR Program has extended the due date for submitting proposals for the research project entitled “Fundamental Understanding of Heat and Mass Transfer in the NH3/H2O Absorber” until July 15, 2002. Prospective bidders can download bidding instructions, work statement and other pertinent information from the ARTI web site atARTI.