Survey Co-ordination Act 1944

Every surveyor, every Commonwealth survey officer, and every person authorized in writing by the Surveyor-General shall, at all reasonable times, be entitled to inspect any registered plan in the central plan office, and the Surveyor-General, when so required, may authorize any person to inspect any registered plan which is kept elsewhere than in the central plan office.

Every person authorized in writing by the Surveyor-General, whether generally or in any particular case, and every Commonwealth survey officer shall at all reasonable times be entitled to inspect any registered plan in the possession of any public authority.