Certain buildings are required to have essential safety provisions installed. The Council or other relevant authority must advise the owner of a building of the essential safety provisions and maintenance standards required for that building upon granting provisional building rules consent, upon a change in classification of the building or upon application of the owner. The owner of the building must then provide the Council with a certificate of compliance for each essential safety provision. For certain buidings, generally those over 500m2 in floor area, as soon as practicable after the end of each calendar year the building owner must provide proof to the Council that adequate maintenance and testing has been carried out in respect of all essential safety provisions. Building owners must not use or permit the use of a building unless the appropriate maintenance and testing of essential safety provisions has been carried out. Purchasers of new buildings should contact the Council to ensure that the building has the required essential safety provisions.