they are examples of courteous flag etiquette.
Fly a U.S. flag above all other flags on a flagpole.
An upside-down flag is a sign of distress.
A flag at half-mast is a sign of mourning.
When raising or lowering a flag half-mast, first raise the flag to the top of the flagpole.
It is unacceptable to lower a flag over a casket into a grave.
It is acceptable to display a flag at night if it is properly illuminated.
The blue portion of the flag will be visible on a properly folded flag.
Give a flag that's beyond repair to your local American Legion Post - they will dispose of it properly.