NADCA - National Air Duct Cleaners Association, Annual Meeting & Exposition, March 27-30, Tucson, AZ; nadc.com
MCAA - Mechanical Contractors Association of America, Annual Convention, March 28-April 1, San Francisco, CA; mcaa.org/mcaa2010
HVACR Plumbing & Instructor Workshop, “Advancing Green Mechanical Concepts,” March 24-26, Landsdowne, VA; instructorworkshop.org