From 16 January 2022, Auckland One Rail (AOR) is the operator of Auckland's rail services on behalf of Auckland Transport. Under the contract, AOR is responsible for train operations, station operations, station and depot maintenance (from 2023), and maintenance of the EMUs (from 2025). AOR is a joint venture between ComfortdelGro Transit (CDGT) and UGL Rail in a 50:50 equity share.