Milk from hoofed mammals approved for the production of certified milk must be free from the organisms which cause salmonellosis, and all hoofed mammals must be tested for that organism a minimum of once per year. Any hoofed mammal to be added to a certified herd must pass a test for salmonella by obtaining a negative result and be certified free of that organism before entering the milking line.
Nev. Admin. Code § 584.2791
NRS 584.067, 584.208