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Though not part of the official Flag Code, according to military custom, flags should be folded into a triangular shape when not in use. To properly fold the flag:
- Begin by holding it waist-high with another person so that its surface is parallel to the ground.
- Fold the lower half of the stripe section lengthwise over the field of stars, holding the bottom and top edges securely.
- Fold the flag again lengthwise with the blue field on the outside.
- Make a rectangular fold then a triangular fold by bringing the striped corner of the folded edge to meet the open top edge of the flag, starting the fold from the left side over to the right.
- Turn the outer end point inward, parallel to the open edge, to form a second triangle.
- The triangular folding is continued until the entire length of the flag is folded in this manner (usually thirteen triangular folds, as shown at right). On the final fold, any remnant that does not neatly fold into a triangle (or in the case of exactly even folds, the last triangle) is tucked into the previous fold.
- When the flag is completely folded, only a triangular blue field of stars should be visible.