The Government has announced an overhaul to the classification of earthquake-prone buildings, introducing a new system that will see thousands of buildings moved out of the regime. . Under the changes, existing New Building Standard percentage ratings for strengthening or demolishing buildings would be removed, in favour of a "more proportionate" system, Building and Construction Minister Chris Penk says. . Q+A asked him what impact it could have on safety. . Join Jack Tame and the Q+A team and find the answers to the questions that matter. Made with the support of NZ on Air.