Learn about how California’s Aerosol Transmissible
Disease (ATD) standard protects us from the novel COVID-19
Virus.
In 2009, a new California occupational health standard was
adopted to protect nurses and other healthcare workers from
infectious agents such as tuberculosis, measles, and pandemic
flu, as well as novel diseases such as COVID-19. The Cal/OSHA
Aerosol Transmissible Disease (ATD) Standard is an enforceable
regulation that applies in healthcare, corrections, and other
high-risk environments.