Outdoors (not in formation)
When retreat is played as a prelude, face the flag (or music if flag is not in view) at the first note, and execute parade rest. Hold this position until the last note and then stand at attention. At the first note of "To the Colors" or the "National Anthem" render the prescribed salute, holding this position until the last note has been played.
Vehicles in motion will be halted. Persons riding in a passenger car will dismount and salute as above. All occupants of military dismount and render the appropriate salute.
Indoors (not in formation)
At the first note of music, stand at attention and hold the position until the last note is played.