The Government admits it could pull out of the TPPA, but the removal of dairy tariffs won't be a make-or-break condition.
The Trans-Pacific Partnership has been heralded as a way of reducing or removing tariffs to dairy exports to the United States.
But Trade Minister Tim Groser told TVNZ's Q&A programme New Zealand could sign the agreement, even if tariffs aren't removed.
"It's conceivable that we will sign up to a deal without zero tariff. For example, from a New Zealand point of view it would be completely irrelevant what the tariffs are on rice or on sugar or on wheat."
Tim Groser says the Government won't sign the agreement, if they don't believe it has public support.