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President Joe Biden has ordered U.S. flags flown at half-staff to honor U.S. Sen. Dianne Feinstein of California, who died today.
Flags should be flown at half-staff until sunset on the day of interment.
To fly the flag at half-staff, hoist the flag to the peak for an instant and then lower it to the half-staff position. The flag should be raised to the peak again before it’s lowered for the day.
The USPS Administrative Support Manual has additional guidelines on U.S. flag display and maintenance.