Calvin C. Williams, PhD., is the President, CEO, Chief Instructor, and Founder of Professional Safety Training Services (PSTS), Inc., a minority-owned, International Environmental, Construction, and Health & Safety Training Firm, located in Cherry Hill, New Jersey. Dr. Williams founded the firm in 1988, while employed as a Regional Health and Safety Director for a large Chemical Waste Management & Environmental firm. Prior to being promoted to Regional Health & Safety Director, he served as a Project Manager, Sr. Project Manager, and was promoted to Regional Health & Safety Director for the firm. Prior to working for the Waste Management firm, he worked as a Ship Fitter in several Shipyards, a Nuclear Quality Control Inspector and Contract Negotiator for a Nuclear Submarine Construction company, Sr. Quality Control/Quality Control Manager for Nuclear Plants and Utility Firms, and Quality Control/Loss Prevention and Safety Director for a large Construction company in Southern New Jersey. He worked for the Chemical Waste Management firm from September, 1986 to July, 1992.