NZ Pork chair Eric Roy said more than half of the pork consumed here was imported from countries such as US, Spain and China and the proposed regulations as they currently stand will leave many consumers none the wiser.
"That's hugely frustrating because what it actually allows is if an importer does just a minor adjustment meat like marinate or infused with a bit of moisture, it can be labelled as New Zealand product," he said.
"It is a get-out-of-jail card."
Roy said it had called on Commerce and Consumer Affairs Minister David Clark to make labelling of country of origin on all imported pork compulsory.
But he said the minister had confirmed the provisions in the act would not be changed - which the industry finds hugely disappointing.
"From our point of view of pig producers in New Zealand about 60 per cent or slightly more than is imported, and it is run under a different regime from New Zealand and some of it would not be allowed to be produced in New Zealand," Roy said.
"We think people ought to be able to choose wisely about the origin of their food.
"And, the third thing is the more promotion we put into what we are doing around the nutrition value of pork and the eating value of pork, the imported pork is making no contribution to that and they are picking up market share all the time on the back of our advertising."
NZ Pork chief executive David Baines took aim at the minister saying he was "clearly not taking the views of consumers into account".
Last year, research undertaken by UMR found more than 80 per cent of New Zealanders believe it is misleading if imported pork further processed in New Zealand is not labelled as imported.
As well as 85 per cent agree that imported pork marinated in New Zealand should be labelled as imported pork.
Meanwhile, 84 per cent agree that imported pork sitting on supermarket shelves beside pigs raised in New Zealand should be labelled as imported pork.
The rules are set to be finalised by June and come into effect in December.
The minister for consumer affairs has been approached for comment.
- RNZ