To verify that your luggage has been successfully checked on Amtrak, you should receive a paper or digital claim check at the time of drop-off. If you are at a staffed station, the agent will tag your bag and provide you with a receipt that includes a unique tracking number. You can often check the status of your journey via the Amtrak mobile app or website by entering your 6-digit reservation code; while it may not show a "GPS track" of your bag, it confirms that checked baggage is part of your manifest. For "Trainside Checked" service (available at select smaller stations), you physically hand your bag to a crew member at the baggage car, and they will hand you a claim check on the spot. If you arrive at your destination and your bag isn't there, this claim check is your primary proof for filing a missing baggage report.