From today, Kiwirail is introducing a 20 dollar fee for truck drivers if staff help them get their truck on or off the Interislander ferry.
It's also introducing a 45 dollar fee for trucks carrying dangerous goods.
Kiwirail says the fees are about the need for cost-recovery for the business and to maintain roads around the ports.
Transporting New Zealand Chief Executive Dom Kalasih says the group is supportive of fee increases - if they increase productivity.
He says at the moment prices seem to be going up without any benefits.
