• Ordinary subrogation is the rights of subrogation that have been changed between two parties in accordance with the terms of the contract they entered into. Ordinary subrogation is necessarily narrower in scope than common law subrogation (or equitable subrogation) because a treaty cannot expand subrogation rights, only limit them. An example of ordinary subrogation is an agreement between contracting parties to waive their rights to indemnity against each other to the extent that insurance is maintained against risks for which the parties might otherwise be liable.