In December 2005, Granholm signed Executive Order 2005-27 ordering the flag of the United States of America be flown half-staff on all state buildings and facilities throughout the state of Michigan on Pearl Harbor Day each December 7.  Procedures for flag lowering, including on Pearl Harbor Day, were detailed by Governor Granholm in Executive Order 2006-10.  The Legislature officially recognized the sacrifice of the servicemen and servicewomen who gave their lives at Pearl Harbor by enacting Public Act 157 of 2000, which declares that December 7 of each year be known as Pearl Harbor Day in the state.

On the morning of December 7, 1941, the Armed Forces of the United State of America stationed at Pearl Harbor, Hawaii, were attacked by the air and naval forces of Imperial Japan.  The attack claimed the lives of 2,334 servicemen and servicewomen and wounded another 1,143.

When flown at half-staff or half-mast, the United States flag should be hoisted first to the peak for an instant and then lowered to the half-staff or half-mast position.  The flag should again be raised to the peak before it is lowered for the day.