preservation

"preservation" means aiming to halt further deterioration, decay or astate of dilapidation and providing structural safety and well being butdoes not contemplate significant rebuilding and includes— (a) techniques of arresting or slowing the process of deterioration,decay or state of dilapidation of an item or structure; (b) improvement of structural conditions to make a structure safe,habitable, or otherwise useful; and (c) normal maintenance and minor repairs that do not change oradversely affect the fabric or historic appearance of a structure;
ACT 645 - NATIONAL HERITAGE ACT 2005
2. Interpretation.

preservation

"preservation" means the totality of processes and operations involved in the physical protection of public records and archives against damage or deterioration and in the restoration or repair of such records and archives;
ACT 629 - NATIONAL ARCHIVES ACT 2003
2. Interpretation.