This column provides an overall introduction to significant existing and proposed state and federal legislation relating to artificial intelligence. This is not a comprehensive review of all the existing or proposed legislation. There are a plethora of existing and proposed state laws and an emerging number of proposed federal states, and this is a field where ongoing investigation is required to stay current with emerging and abandoned developments. By design, not all existing and proposed legislation is covered here. Instead, notable existing and proposed federal legislation is outlined to provide an overall view of how U.S. law approaches.