Changes to immigration rules to help meet demand for the 5000 more construction workers needed to rebuild Canterbury have been largely welcomed by a workers' union.
However, the EPMU has also sounded a warning over the pressure such an influx of workers will put on an already stretched housing supply.
Immigration Minister Michael Woodhouse is to change immigration policy to make it easier to bring in and keep migrant workers involved in the Canterbury rebuild.
An estimated 5000 extra construction workers will be need between December last year and the peak of the rebuild in December next year.
"We need to remove barriers to employers recruiting migrant workers when New Zealanders are not available to do the work," Mr Woodhouse said.