In this sub-chapter:

(1) "Official test" as applied to testing of poultry, means a test made by an authorized employee of the Montana department of livestock, animal health division or its authorized agent.

(2) "Cleaned and disinfected" means removal of all litter and thorough cleaning of premises, in a manner approved by the Montana department of livestock, animal health division, followed by a thorough spraying of all exposed surfaces with an approved disinfectant.

(3) "Distributor" means any person, who is in the business of distributing, disposing of or selling to the public baby, young or other chickens, ducks, geese, turkeys or other domestic fowl, or eggs for hatching purposes, including what is known as "over the counter sale" of baby chicks.