Changes to ACC to hike levies and reduce coverage were passed into law this week with serious consequences for workers.
The government has justified the changes with claims ACC is insolvent, despite the fact the organisation made a billion dollar surplus last year and holds $11 billion in investments.
EPMU national secretary Andrew Little says the bill is an attack on working Kiwis.
"The argument that ACC needs to be fully funded is spurious and using this rationale to charge workers more and look after them less is an act of deceit."
"This bill is an attack on working Kiwis who will now pay more and get less from ACC."
The government's changes to ACC include: