ACC Minister Judith Collins has written again to two Labour MPs and Radio New Zealand, threatening legal action unless she gets the apologies she sought earlier this month.
Ms Collins has accused the MPs, Trevor Mallard and Andrew Little, of defaming her.
The MPs and Radio New Zealand have been given until Thursday to apologise over comments made and reported about the leaking of an ACC claimant's name to the news media.
Ms Collins initially wrote to the parties threatening legal action if an apology was not given.
No apologies were made.