If you're a regular user of Amtrak's Northeast Corridor line between Washington, New York and Boston, be warned: the schedules change for the season on Sunday morning with some trains being dropped, some being renamed, some running slower and some being speeded up.

In general, there is no change in the departure schedules of the high-speed Metroliner expresses, but some trains will arrive at their destinations a few minutes earlier than at present.

Among the changes will be a 10-minutes later departure, at 7:40 a.m., of the New England Zip, the first standard (non-Metroliner) train to New York every day but Sunday. It will arrive there at 10:15 instead of 10:19, a speed-up of 14 minutes. The 7 and 8 a.m. trains to New York on Saturday are being discontinued, with a 7:30 train being retained.

A popular late-afternoon train from New York to Washington, the Minute Man, will continue to leave Penn Station at 5:30, but is scheduled to arrive here at 8:43, 20 minutes earlier than at present. But the Bankers, which leaves New York at 9:35 a.m. each morning, will be delayed 13 minutes, arriving at 12:57 p.m., because of slower operation between Philadelphia and Wilmington.

Incidentally, as reported elsewhere in today's Metro section, the new Capital Beltway Amtrak station also opens for regular service on Sunday.