(1) All food processing establishments shall comply with all of the following items of sanitation. Before any establishment shall commence serving the public, the owner, or manager thereof shall notify the department or local health officer, sanitarian, or sanitarian-in-training in order that a preliminary inspection may be made to determine whether or not the establishment complies with the following items of sanitation, and no establishment shall open unless there is on display an inspection report indicating satisfactory compliance with all such items. This provision shall also apply to existing establishments whenever the ownership, location, operation, or management of such existing establishment is changed or interrupted.