By RNZ
District health boards say the disruption set to be caused when 10,000 health workers take industrial action tomorrow will vary around the country.
For two weeks, from tomorrow, members of the Public Service Association will only work their contracted hours, over pay and working conditions.
The workers include anaesthetic technicians, oral health therapists, alcohol and drug clinicians and sterile sciences technicians.
Staff will refuse to work more than their contracted hours and take all their entitled breaks under the work-to-rule action.