Implementation of the legislation has been phased, with operator licensing near completion and driver licensing at the end of a consultation process. Over 2,000 operators have applied and It is estimated that there are about 40,000 drivers and a similar number of vehicles.

To cope with the additional volume a new integrated taxicab and private hire information technology system (TAPITS) has been developed. Alongside this, are plans to develop a computer-based Knowledge of London testing system that will interface with the proposed integrated system.

In November 2005, in the report 'Where to, Guv’?, the London Assembly's Transport Committee reported on a review of the Public Carriage Office and made some key recommendations.