PORTLAND, Maine — The Downeaster will serve as the pilot program for Amtrak’s eTicketing system, which is due to launch nationwide next year.

Amtrak’s eTicket eliminates the need for traditional paper tickets. Instead, a receipt is emailed to passengers, who can print it themselves at their convenience. Passengers also will be able to make changes to reservations online before they begin their travel.

Traditional tickets remain available at ticket offices and Amtrak kiosks. And traditional tickets are required for group tickets, multiride tickets and travel beyond the Downeaster route.

The Downeaster travels between Portland and Boston. Existing stops are Old Orchard Beach, Saco and Wells in Maine; Dover, Durham and Exeter in New Hampshire; and Haverhill and Woburn in Massachusetts.