Today is the last day Chase cardholders can transfer Chase Ultimate Rewards points to Amtrak Guest Rewards. Chug chug.
One Mile At A Time reports that this comes as part of a larger change over at Amtrak, who will be retooling their frequent rider program from a zone-based awards to a revenue-based system in January 24, 2016. So while transfers need to be done by like asap, there is still a decent amount of time to plan a trip.
The blog also provides a run-through of how to do the transfer, though it's not brain surgery and transfers easily (it's 1:1). Get on it now if you're looking to use those Chase rewards for the next train journey! Like today.