The Greens have made an election pledge to make union membership automatic for new employees.

Co-leader Marama Davidson says this members bill and policy would make union membership the default setting for new employees, who could choose to opt out.

Davidson explained that unions are a critical way for workers to get better pay and conditions and this bill will make it easier for them to get involved.

"This is a good idea, and of course we need to protect privacy - at the same time, normal accountabilities will apply." 

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