What exactly does it take to become a Certified Industrial Hygienist (CIH) or a Certified Safety Professional (CSP)? To get the facts, Industrial Safety and Hygiene News talked to Lynn O'Donnell, executive director of the American Board of Industrial Hygiene (ABIH), the organization responsible for certifying industrial hygienists, and Roger Brauer, acting executive director for the Board of Certified Safety Professionals (BCSP), which certifies safety professionals.