La. R.S. 40:1579

For ingress by firemen, every structure, watercraft, or movable shall have at least one window or other device in each story of the building on a street front or on an alleyway or court accessible to a street, which can be opened from the outside in case of fire in the structure, watercraft, or movable so as to furnish immediate ingress to the story or stories of the structure, watercraft, or movable.