Holiday observed: Sunday and officially on Monday.

Retail stores: Most open.

Liquor stores: Most open.

Supermarkets: Most open.

Convenience stores: Most open.

Taverns, bars: Most open.

Banks: Closed.

Stock market: Closed.

Municipal, state, federal offices: Closed.

Libraries: Closed.

Schools: Closed.

Mail: Post offices closed; express delivery only, except Fort Point Station at 25 Dorchester Ave., which will be open from 8 a.m. to 4 p.m. on both days.

MBTA: Subways, and buses on Sunday schedule. Commuter rail on a Sunday schedule. Hingham and Charlestown commuter boats will not operate. The Ride on a Sunday schedule. For more information, call 617-222-3200.

Meters not enforced. All other parking rules apply.

Trash/recycling collection: Trash and recyling collection with be delayed a day in Jamaica Plain, Allston, Brighton, Roslindale, Dorchester, Mattapan, East Boston, West Roxbury, and Hyde Park. Trash and recycling collection will remain on schedule in Charlestown, Beacon Hill, the North End, the South End, Back Bay, Bay Village, Fenway, Mission Hill, the Leather District, South Boston, and Chinatown.