The Refrigeration Service Engineers Society (RSES) will extend discounts on its seminars to members of sister associations, including the Air Conditioning Contractors of America (ACCA); the American Society of Heating, Refrigerating, and Air-Conditioning Engineers (ASHRAE); The International Institute of Ammonia Refrigeration (IIAR); the Northamerican Heating, Refrigeration and Airconditioning Wholesalers Association (NHRAW); and the Plumbing-Heating-Cooling Contractors (PHCC). For information on sister association seminar discounts or upcoming RSES seminars, contact Jean Birch at 847/759-4046.