Policy change refers to the process by which laws, regulations, and other rules governing society are altered or replaced. This process can involve a wide range of actors, including government officials, interest groups, the public, and experts in various fields. Policy change can result from a variety of factors, such as shifts in public opinion, changes in economic conditions, technological advancements, or new research findings. The goal of policy change is often to address emerging challenges or problems facing society, improve the efficiency and effectiveness of government programs, or promote the well-being of citizens. The process of policy change can be complex and contentious, requiring careful analysis, negotiation, and collaboration among stakeholders.