What's closed, open on Memorial Day

Holiday observed: Today.

Retail stores: Open at owner's discretion.

Liquor stores: Closed.

Supermarkets: Open.

Convenience stores: Open.

Taverns, bars: Open.

Banks and stock market: Closed.

Municipal, state, federal offices: Closed.

Libraries and schools: Closed.

Mail: Post offices closed; express delivery only.

MBTA: Subways, buses, trackless trolleys, commuter rail, THE RIDE, and the Quincy commuter boat to Long Wharf and Logan Airport will operate on Sunday schedule. Inner-harbor ferry service from Charlestown to Long Wharf will operate on a weekend schedule. Commuter boat service between Hingham/Hull and Boston will not operate. For more information, call 617-222-3200.

Boston traffic rules: Meters not in effect. All other parking rules apply.

Trash, recycling collection: Regular collections in Boston proper and Roxbury. Charlestown collection is Wednesday. All other districts except South Boston are deferred one day.