Thursday is former President Jimmy Carter’s state funeral in Washington D.C. President Joe Biden also declared Jan. 9 as a National Day of Mourning across the U.S.

Biden issued the executive order closing executive departments and agencies of the federal government on Dec. 30, the day after Carter died at age 100. Flags were also ordered to fly at half-staff for 30 days from the day Carter died.

Here’s what you can expect will be open or closed on the National Day of Mourning:

Federal offices and mail service

Most federal offices will be closed on Thursday, except for federal workers whose jobs are deemed as vital.

The United States Postal Service officials say regular mail delivery, retail service and office activity are suspended. There will be limited package delivery. Regular activities resume on Jan. 10.

Businesses and banks

Businesses and banks are not required to close on national days of mourning, since it’s not an official federal holiday.

Supreme Court

The Supreme Court will be closed on Thursday. It was not scheduled to be in session on Thursday before Supreme Court Chief Justice John Roberts ordered the court closed.

US Stock Markets

The New York Stock Exchange will observe the national day of mourning by closing markets. Nasdaq is also closing all U.S. equities and options markets on Thursday.

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