The Illuminating Engineering Society (IES, est. 1906), in partnership with the International Ultraviolet Association (IUVA, est. 1999), has published its first in a series of American National Standards for the measurement of ultraviolet product emissions. Since its discovery in 1877, germicidal ultraviolet disinfection has been deployed globally to reduce the rate of transmission of tuberculosis and other airborne pathogens in indoor spaces, including SARS-CoV-2, the virus that causes COVID-19.