Also don't forget the Streetdecks were ordered by Arriva in response a requirement for low emission buses in use in the area covered by the Leeds Clean Air Zone which had planned to be introduced in January 2020, but due to delays by the UK Government it was delayed until January 2021 at the earliest,.

In September 2019 Wrightbus went bust and so the last 7 Streetdecks were delayed, Arriva then decided that as the CAZ was delayed and there was a chance that the buses would not have a warranty, those last 7 were cancelled.

On 13/10/2020 the CAZ was cancelled as the reductions of traffic due to COVID had reduced emissions to below the levels that the CAZ was due to result in.