These Rules determine provisions on the health clearance of any vessel or aircraft; special sanitary measures; precautions against rodents; measures to be applied to vessel in filthy condition; persons detained in quarantine or permitted to enter quarantine station; and charges for quarantine and port health services. The owner or occupier of any canteen, other than a travelling canteen or refreshment bar in any wharf area shall conform with the provisions of the Public Health (Hotels, Restaurants and Refreshment Bars) Regulations.