QEHSHealth
Chemical hygiene planCHP
An OSHA-required written program for laboratories using hazardous chemicals, specifying procedures, equipment, and work practices.
Under OSHA 29 CFR 1910.1450 (Occupational Exposure to Hazardous Chemicals in Laboratories), any laboratory that uses hazardous chemicals must develop and implement a Chemical Hygiene Plan. The CHP must designate a Chemical Hygiene Officer, describe standard operating procedures for handling hazardous chemicals, specify control measures (engineering controls, PPE, administrative controls), detail fume hood and ventilation requirements, provide for employee training and medical consultation, and designate particularly hazardous substances requiring prior approval.