Aerosol Transmissible Disease

The California Occupational Safety and Health Administration (CalOSHA) Aerosol Transmissible Disease (ATD) Standard (8CCR 5199) applies to employees in the healthcare facilities, maintenance employees working in these facilities, emergency responders and emergency medical transporters. It would also apply to employees in  research laboratories which handle materials that may be a source of aerosol transmissible pathogens (ATPs).