Regulatory action is implemented through several mechanisms:
1. Legislation: Governments pass laws to mandate vaccinations, control the sale of tobacco, and regulate food safety, amongst others. 2. Surveillance: Continuous monitoring of disease incidence and prevalence to detect and respond to health threats. 3. Inspections and Audits: Regular checks on healthcare facilities, food establishments, and other relevant entities to ensure compliance with health regulations. 4. Public Health Campaigns: Educational initiatives to promote healthy practices and inform the public about health risks and preventive measures.