Legal basis: Article 16 of the Hygienic Standard for the Use of Food Additives, the sales staff of breakfast trucks must abide by the following provisions: (1) Holding a health certificate and a business license; (two) shall not subcontract the breakfast car or hire others to sell; (three) shall not be sold without breakfast engineering signs, expired or deteriorated products; (4) Dress neatly, wear work clothes, work caps and badges uniformly produced by the breakfast project organizer, and do a good job in personal hygiene; (5) Smoking is not allowed in sales.