Auckland's bus services will be disrupted from Thursday by a "work to rule" campaign by up to 900 drivers in pursuit of a new pay deal.
The Tramways and First unions have given NZ Bus notice of the campaign, which will run from 4am on Thursday until it is cancelled.
Although they will ask their members to work strictly according to the company's rule book, as well as the road code and legislation governing maximum driving hours, the action is deemed by industrial law to be a strike for which three days' notice is required.
It will include drivers taking five minutes on "terminal duties" between each bus run, as well as their full meal breaks, which Auckland Tramways Union president Gary Froggatt said would inevitably cause some disruption.
He said the unions had served the notice after receiving no response from the company to an offer of further discussions towards a new collective employment agreement.