The Daily Freeman has a rundown of how various services and offices are affected by the Martin Luther King Jr. holiday:
Amtrak: Holiday schedule
Banks: Closed
County offices: Closed
Federal offices: Closed
Financial markets: Closed
Greene County Transit: No service
Mail delivery: None
Metro-North: Saturday schedule, with extra trains
Schools: Closed
State offices: Closed
Trailways: Call (845) 339-4230