An appeal against the Electoral Commissioner's decision to dismiss an objection from disgruntled ex-candidate Marti Zucco will be heard in the Supreme Court on Monday.

The hearing comes just two days before the issuing of the writs, and the deadline for party registration.

If the appeal is dismissed, the party will be officially registered and can stand as a party in the state election.

If not, PUP candidates will have to run as an endorsed non-party group, which requires the support of 100 nominators for each electorate.

PUP state director James McDonald said the party had the nominators ready if that was the case.

"We're confident our campaign will let people know who we are," Mr McDonald said.

State party leader Kevin Morgan said he had always been sure the party would be registered in time.

"We've always been very optimistic," Mr Morgan said.

Mr Zucco had objected to the party registration on the grounds that PUP had asked him to get a non- member to sign a declaration saying they were a member for the purpose of registering the party.