ACGIH® is a 501(c)(3) charitable scientific organization that advances occupational and environmental health. Examples of this include our annual editions of the TLVs® and BEIs® and work practice guides in ACGIH®'s Signature Publications. For nearly 80 years, ACGIH® has been respected for its dedication to the industrial hygiene and occupational health and safety industries. Our Board of Directors and Committees consist of members who strive to provide essential, cutting edge information to government, academia, and corporate facilities throughout America, Canada and countries abroad. This information is provided to members and others in the industry through ACGIH® and AIHA's monthly peer-reviewed journal, the Journal of Occupational and Environmental Hygiene (JOEH), and our professional conferences and seminars, as well as through our list of approximately 400 technical and scientific publications. With over 3,000 members throughout the world, ACGIH® believes in its vision for tomorrow, and would like to offer you the opportunity to join us. To learn more about ACGIH® membership and its benefits, visit our website today.