The Director of Health Services, i.e. Secretary of Health Services or his designee, shall maintain and improve health and sanitary conditions, minimize and control communicable disease, establish standards, etc. He or she shall, subject to the approval of the High Commissioner, have powers to make such Regulations as he deems necessary for the public health and safety, inter alia, concerning: (a)pollution; (b) adulteration and misbranding of food, drugs, or milk; (c) sanitation, drainage, sewage