Commonwealth Consolidated Regulations Commonwealth Consolidated RegulationsA commanding officer may, by instrument in writing, approve the erecting or placing of signs at or near the entrances to a public area, a part of a public area, or a part of a naval, military or air force establishment, as the case requires, for the purpose of:
(a) conveying directions to be followed by, warnings for the guidance of, or requirements to be observed by, persons using a public area;
(b) designating part of a public area as a parking area; or
(c) designating part of a public area, other than a public area that is or forms part of an island, as a camping area.