The official death toll from the Christchurch earthquake stands at 166 on Tuesday.
Police released 13 more names on Monday, bringing the total of the named dead to 57.
The Fire Service says teams including urban search and rescue, fire fighters and police officers are working around the city on controlled deconstruction and clearance of debris.
More than 500 buildings in the central city and suburbs have been cleared. Civil Defence says 56 buildings have been demolished.
From Thursday morning, proven residents and business owners will have access to zone three.
The zone is bordered by Montreal and Salisbury streets and Fitzgerald and Bealey avenues, via Cambridge Terrace back to Fitzgerald Avenue.
This zone will be open to the public on Friday morning.
Power has been restored to 95% of the network, but 13,500 customers are without supply.
Scheduled community briefings will resume on Wednesday.