Rotorua workers are turning back to unions for support amid concerns over the Employment Relations Amendment Act.
Amalgamated Workers Union Rotorua representative Robert Popata said they had seen an increase in new membership after the bill was passed.
"People who didn't think they needed a union are knocking on our door, saying they misjudged the political climate."
The controversial law, which comes into effect in March, has been accused of taking away the legal right to tea breaks and weakening collective bargaining. The changes to collective bargaining let employers walk away from negotiations without reaching agreement and remove a provision that ensured new employees could benefit from collective agreements already in place. First Union local representative Phil Graham considers the changes to collective bargaining "a clear indication from National that they wish to limit unions' involvement [in employment issues]."
Mr Graham had not noticed an increase in new members but said most members were concerned about the law.