Policy refers to laws, regulations, procedures, or voluntary practices by governments or institutions that can influence health through various sectors like transportation or education. An Act is a decree passed by a legislature that establishes specific regulations and laws. A mission outlines the problems an organization aims to solve through its products or services. A scheme is a plan made by a government or organization involving many people. A programme is a set of plans to develop or improve something, while an initiative is an important act or statement intended to solve a problem.