Repeal refers to the act of officially revoking or canceling a law, regulation, or policy. This process often occurs when a governing body, such as a legislature, decides that a particular law is no longer necessary, effective, or just. Repealing a law can lead to significant changes in how a society operates, as it removes the legal framework that supported that law. In many cases, repeal is pursued through a formal legislative process, where lawmakers debate and vote on the proposed change. For example, the repeal of the Affordable Care Act provisions has been a topic of discussion in U.S. Congress, highlighting the complexities and implications of changing healthcare laws.