Los Angeles has a variety of policies in place for restaurants to maintain safety and cleanliness. One major policy is the requirement for all restaurants to post their letter grades from health inspections in a conspicuous location for customers to see. Additionally, restaurants must have a food safety plan in place and ensure all employees have a food handler's certificate. The city also has a minimum wage requirement for restaurant workers and mandates sick leave for employees. Furthermore, smoking is prohibited in all indoor areas of restaurants, and establishments must comply with building and fire codes. Overall, these policies help ensure that restaurants in Los Angeles operate in a safe and healthy manner for both employees and customers.