If you leave your bag at the baggage claim, it follows a specific "abandoned property" protocol. For the first few hours, the bag is typically moved to the Airline's Baggage Service Office (BSO) near the carousels. If no one claims it within a few days, it is moved to a central airline warehouse. Airlines generally hold unclaimed bags for 90 days while using tracking systems like WorldTracer to match them with lost property reports. After this 90-day window, the bag is legally considered abandoned, and the airline may sell the contents to liquidation companies (like the famous Unclaimed Baggage center in Alabama) or donate items to charity. It is a high-value peer tip to never leave your bag intentionally expecting to pick it up later; if the airport's security team identifies an "unattended bag" on the floor, they may treat it as a potential threat, leading to a terminal evacuation or the bag being professionally destroyed. Always report a forgotten bag immediately to the airline to ensure it is logged and stored safely.