Final answer:
Disinfectants used in licensed establishments must be registered, and manufacturers must perform use-dilution tests to validate the efficacy claims of their products.
Step-by-step explanation:
Disinfectants used in licensed establishments must be registered. Disinfectant manufacturers perform use-dilution tests to validate the efficacy claims for their products, as designated by the EPA. The Association of Official Agricultural Chemists International (AOAC) has determined specific standards that disinfectants must meet to achieve a passing result.