Supreme Court Rules 2000

If in any proceeding a defendant makes a contribution claim in respect of any claim for a debt or damages made by the plaintiff in the proceeding, a party to the contribution claim may serve on any other party to the contribution claim an offer to contribute toward a compromise of the claim made by the plaintiff on any terms specified in the offer.

The Court or a judge may take an offer to contribute into account in determining whether the party on whom the offer to contribute was served is to pay the whole or a part of – the costs of the party making the offer; or any costs which the party making the offer is liable to pay to the plaintiff.

Rules 286 and 287 apply, with any necessary modification, to an offer to contribute as if it were an offer of compromise.