March 23, 2016 - As a mark of respect for the victims of the senseless acts of violence perpetrated on March 22, 2016 in Brussels, Belgium, the President has issued a Presidential Proclamation that flags be flown at half-staff until sunset, Saturday, March 26th. If you have other flags such as the state flag flying with the US Flag they are to also be lowered. If you have a flag that cannot be lowered a black cord or ribbon can be tied at the top to show respect.
You can view the proclamation at https://www.whitehouse.gov/the-press-office/2016/03/22/presidential-proc...
Flags at Half-Staff Alert
