A bachelors degree in a branch of engineering, physical science, or life science that included 12 semester hours in chemistry, including organic chemistry, and 18 additional semester hours of courses in any combination of chemistry, physics, engineering, health physics, environmental health, biostatistics, biology, physiology, toxicology, epidemiology, or industrial hygiene. Examples of specialized experience includes providing professional knowledge of Industrial Hygiene and related safety and environmental concepts, principles and practices relating to a wide range of duties concerned with recognizing, identifying, evaluating, and controlling occupational health and environmental hazards in a variety of settings.