When the flag is displayed over the middle of the street, it should be
suspended vertically with the union to the north in an east and west
street or to the east in a north and south street.
The flag of the United States of America, when it is displayed with
another flag against a wall from crossed staffs, should be on the right,
the flag's own right [that means the viewer's left --Webmaster],
and its staff should be in front of the staff of the other flag.
The flag, when flown at half-staff, should be first hoisted to the peak
for an instant and then lowered to the half-staff position. The flag
should be again raised to the peak before it is lowered for the day. By
"half-staff" is meant lowering the flag to one-half the
distance between the top and bottom of the staff. Crepe streamers may be
affixed to spear heads or flagstaffs in a parade only by order of the
President of the United States.
When flags of States, cities, or localities, or pennants of societies
are flown on the same halyard with the flag of the United States, the
latter should always be at the peak. When the flags are flown from
adjacent staffs, the flag of the United States should be hoisted first
and lowered last. No such flag or pennant may be placed above the flag
of the United States or to the right of the flag of the United States.