We'll consult on plebiscite committee: PM

Prime Minister Malcolm Turnbull has promised to consult thoroughly on the make-up of the committees that will manage $15 million in public funding for the plebiscite on gay marriage.

A 10 member committee - with five on each side - will consist of government, opposition and crossbench MPs and five non-parliamentarians from the yes and no advocacy groups.

"We will obviously consult widely," Mr Turnbull told parliament on Tuesday, promising it will be a fair process based on precedent.