What is a notice of intention to adjudicate?

A notice of intention to adjudicate defines the dispute that is being referred to the adjudicator and prevents either the parties or the adjudicator from introducing other disputes. For example, a notice asking the adjudicator to decide whether or not the referring party is entitled to the sum claimed does not permit the adjudicator to decide how much is in fact due, if the adjudicator decides that the sum claimed is not due. In the case of ambiguity in the notice of intention to adjudicate, the notice will be construed against the referring party.