More than half of the 342 buildings earmarked for review following the devastating earthquake in New Zealand in 2011 have either been cleared or excluded, according to NZ Building and Construction Minister Maurice Williamson.

The review of buildings with non-ductile columns is being led by the Ministry of Business, Innovation and Employment. The Ministry is seeking to establish whether there are any buildings with similar design flaws to the Canterbury Television Building, which collapsed in the February 22, 2011 earthquake, killing 115 people. Testing…