It was launched in December 2014, following the decommissioning of the MAXX brand with updated bus and train liveries, staff uniforms, wayfinding signage and a refreshed external communications identity.

Bus operator contracts were updated in late-2014 requiring fleets to be repainted in AT Metro livery in tandem with their standard maintenance schedule.

Liveries differ depending on the service, with rapid transit services (Northern Express bus and rail) in AT Blue and AT Silver accented in yellow highlights; specialty bus services (Link and Airporter) in custom, distinguishable colours; and other bus services in AT Blue and AT Silver.

[3] AT Metro replaced the MAXX brand, introduced by the former Auckland Regional Transport Authority.

The MAXX brand was not widely recognised as bus operators did not update their fleets to the new livery.