The law would also make changes to rules around the restoration of the Kaikoura harbour.
"It's essential that access from the sea is restored so dredging, and other necessary work, will become controlled activities under the Regional Coastal Plan," he said.
The bill amending the Civil Defence Emergency Management Act is expected to be passed in parliament under urgency and brings forward the commencement date of recently enacted Civil Defence laws.
A third bill is set to be introduced on Thursday and aims to speed up the way in which affected councils can change bylaws.
Mr Brownlee said the bills had been developed by officials who had experience with the Christchurch quakes.
"A cross-party group of all parliamentary representation has further worked on the bills to strike a balance between accelerating works and respectful process," he said.
The government on Monday announced it was also extending its earthquake support to Wellington businesses.