Adjudication is generally limited to a contractor’s payment guarantee. State governments in Australia have adopted legislation to ensure regular and prompt payment for work done under contracts in the construction industry, and this legislation extends to associated service providers such as architects and engineers. Claimants who have provided work, goods or services can force the respondent to make payment on account. The scheme has been established with the aim to provide speedy and inexpensive management of disputed claims. The process is designed to maintain progress payments under dispute. Claimants who have a dispute over payment can lodge an adjudication application with an Adjudicator or Authorised Nomination Authority (ANA). The Adjudicator is a person agreed between the participants or nominated by an ANA to determine a payment dispute.