Act on the Maintenance of the Cleanliness and Orderliness of the Country, B.E. 2535 (1992).

This Act consists of 62 Sections divided into 6 Chapters: The Maintenance of the Clealiness in Public Place and Public Establishment; The Keeping and Maintenance of Lawn and Trees in The Road and Public Establishment; The Prohibition of The Dropping of Refuse and Waste in The Public Place and The Public Establishment; Maintenance of The Orderliness; The Powers and Duties of the Local Official and the Competent Official; Penalties.
No one shall: (1) cook food, sell or distribute goods on the road or in public establishment; (2) use a sedan car or wheeled vehicle as a cooking place for selling or distributing to persons on the road or in the public establishment; (3) sell or distribute goods contained in a car, motorbike or wheeled vehicle on the road or in public establishment (Section 20). In the case of market selling either food or goods, on a daily basis or at times, the owner of the market shall have a duty to keep and maintain the cleanliness of the pavement adjacent to the market, and the occupier of a certain area of the market shall have a duty to maintain the cleanliness of the area of the market occupied by the occupier (Section 6). No one shall pour or drop refuse, waste, waste liquid or other things onto the road or waterway (Section 33).