All Postal Service facilities should fly the U.S. flag at half-staff to honor former President George H.W. Bush, who died Nov. 30.
Flags should be flown at half-staff until sunset Dec. 31.
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.
For additional information, refer to the Postal Service’s guidelines on U.S. flag display and maintenance.
See: Latest Postal Bulletin highlights Regulations for Proper Flag Display (June 2017)
Source: USPS