Monday is Columbus Day, a federal holiday, celebrated yearly on the second Monday in October. Below, what's closed and what's open:

• Public schools: Closed

• Libraries: Closed

• Federal, state and municipal offices: Closed

• Banks and credit unions: Closed

• Post offices: Closed; express mail delivery only

• Department of Motor Vehicles: Closes Friday at 12:30 p.m. and will reopen Tuesday, Oct. 9 at 7:45 a.m.

• Stock market: Open

• Businesses: Most open

• SEAT Bus: Operating on a holiday schedule

• Shore Line East: Normal schedule