The Green Party says it won't hold up the process should New Zealand First choose a Labour-led Government today, despite having to get the approval of its 170 members to enter into any coalition.

Winston Peters will announce a Government this afternoon, after near-two weeks of hard negotiations and deliberations.

He hasn't yet put an exact a time or place for the announcement, or indicated which way he'll go.

But if he chooses Labour, a spokesman for the Greens said they'll have their full membership on conference call for a special general meeting, by evening.

He said they're quite used to consulting the membership in this way, and have had them on standby, with evening's cleared, for several days now.

There isn't expected to be any hold up in getting such a deal signed off.