important bits: Registration required at amtrakguestrewards.com Double points from today (March 21) until May 6 Triple points from National Train Day (May 7) until May 21. full promo: The signs of spring are here, including a great offer from Amtrak Guest Rewards®. Register now for our Spring Ahead promotion and any Amtrak travel will earn double points March 21 through May 6, 2011. Plus, earn triple points starting National Train Day, May 7 through May 21, 2011. Register today, and all qualifying travel from the start of the promotion will earn bonus points. So you, and your points, can spring ahead. Must be an Amtrak Guest Rewards member and register for this offer online or by calling 1-800-307-5000 to participate. Earn double points on qualifying Amtrak travel from March 21, 2011 12:00:00am CST through May 6, 2011 11:59:59 CST and earn triple points on qualifying Amtrak travel from May 7, 2011 12:00:00am CST through May 21, 2011 11:59:59 CST. Cancelled or refunded reservations/tickets will be deemed ineligible. Members must include their membership number when making reservations for travel to qualify. Other terms and conditions may apply.