Cages, crates and enclosures shall provide proper space to allow each animal to move around with ease. Cages, crates and enclosures shall be maintained at all times in a sanitary condition, with sufficient clean and dry bedding to prevent offensive odors. Animals shall be provided proper water at all times. Animals shall be provided with proper food. Animals shall be provided with proper air and healthful temperatures for every species. Access to proper shelter and protection from the weather must be available at all times. A proper number of attendants shall be on the premises during the hours the zoo is open to the public in order to provide proper supervision. Hand washing facilities for the public shall be provided.