9 C.F.R. § 91.6 – Cleaning and disinfection of means of conveyance, containers, and facilities used during movement; approved disinfectants.

(a) All export health certificates for livestock must be accompanied by a statement issued by an APHIS representative and/or accredited veterinarian that the means of conveyance or container in which the livestock will be transported from the premises of export has been cleaned and disinfected prior to loading the livestock with a disinfectant approved by the Administrator for purposes of this section or by a statement that the means of conveyance or container was not previously used to transport animals.
(b) Livestock moved for export may be unloaded only into a facility which has been cleaned and disinfected prior to such unloading with a disinfectant approved by the Administrator for purposes of this section, and has subsequently been inspected by an APHIS representative or accredited veterinarian. A statement certifying to such action must be attached to the export health certificate by the APHIS representative or accredited veterinarian.
(c) Approved disinfectants. The Administrator will approve a disinfectant for purposes of this section upon determining that the disinfectant is effective against pathogens that may be spread by the animals intended for export and, if the disinfectant is a chemical disinfectant, that it is registered or exempted for the specified use by the U.S. Environmental Protection Agency. The Program Handbook provides access to a list of disinfectants approved by the Administrator for use as required by this section. Other disinfectants may also be approved by the Administrator in accordance with this paragraph. The Administrator will withdraw approval of a disinfectant, and remove it from the list of approved disinfectants, if the disinfectant no longer meets the conditions for approval in this section.
(Approved by the Office of Management and Budget under control number 0579-0432)