A legislative bill is a formal proposal for new legislation or an amendment to existing laws. It is introduced in a legislative body, such as a parliament or congress, where it undergoes debate, revision, and voting. If approved, the bill can become law after receiving the necessary approvals from the relevant authorities, such as the president or governor. Bills can address a wide range of issues, including public policy, social issues, and economic matters. They are often categorized into different types, such as public bills, which affect the general public, and private bills, which affect specific individuals or organizations.