Presidential Decree No. 856 Promulgating the Code on Sanitation of the Philippines.

The objective of this Code on Sanitation is the improvement of the way of the Filipinos by directing public health services towards the protection and promotion of the health of the people.
Chapter III contains the provisions for food establishments. In this chapter means an establishment where food or drinks are 1nanufactured, processed, stored, sold or served. In order to operate a food establishment for public patronage, a permit shall be obtained from the local health office. All foods must be obtained from sources approved by the local health authority. The Chapter makes provisions among others, requirements for food establishments' structure, quality and protection of all types of food, fish marketing areas, inspection or evaluation of food establishment, health certificates of employees, bactericidal treatment.
Chapter II provides for water supply. Standards for drinking water and their bacteriological and chemical examinations, together with the evaluation of results, shall conform to the criteria set by the National Drinking Water Standards. The treatment of water to render it safe for drinking, and the disinfection of contaminated water sources together with their distribution systems shall be in accordance with procedures prescribed by the Department. Other provisions include the examinations required for drinking water, examining laboratories and submission of water samples, the measures to protect drinking water from contamination, etc.
In addition, the Code makes provisions for: requirements in the operation of sewerage works and sewage treatment plants, responsibilities of cities and municipalities for providing a system of collecting, transporting and disposing solid wastes in their areas of jurisdiction in a manner approved by the local health authority, the authority of the Health Secretary to promulgate rules and regulations for the control and prevention of the environment pollution, etc.