This week on IAQ radio we welcome back one of our favorite guests to talk about a new AIHA mold document and some other industry current events. Donald Weekes was a Partner at InAIR Environmental, Ltd. an occupational and environmental health and safety consultancy based in Ottawa, ON. He is now a full-time volunteer. Mr. Weekes has been providing environmental and occupational health and safety technical assistance for more than forty-three (43) years. Mr. Weekes is a Certified Industrial Hygienist (CIH) and Certified Safety Professional (CSP). He is currently a Director of the American Conference of Governmental Industrial Hygienist (ACGIH). He is a Past President of IAQA (Indoor Air Quality Association), as well as Past President of the Ottawa Valley Chapter for ASHRAE (American Society of Heating, Refrigerating and Air-Conditioning Engineers). Besides these professional organizations, Mr. Weekes has also involved as a volunteer with the following professional organizations: American Industrial Hygiene Association (AIHA), International Society of Indoor Air Quality (ISIAQ), Canada Green Building Council (CaGBC).