The Papua New Guinea Opposition is seeking a Supreme Court ruling to force the government to allow its motion for a no confidence vote.
The opposition submitted the motion to parliament five weeks ago however it was rejected by the Permanent Parliamentary Committee on private business.
But the opposition leader says the committee can only reject the submission if it is out of order.
He says a motion of no confidence by its very nature is a matter of national importance and the committee does not have the power to make such a decision.
The opposition's application is now before the Supreme Court and they are asking the court to order parliament to reconvene to deal with the motion.