Question to the HM Treasury:

To ask the Chancellor of the Exchequer, what contingency plans he has put in place for the potential eventuality that customs declarations software fails after the transition period has ended.

HMRC continue to test their customs systems to ensure they will remain effective following the end of the Transition Period. In the unlikely event of an unplanned outage there are fallback procedures in place. In addition, there is a disaster recovery system for CHIEF, and the new Customs Declaration Service is protected by the cloud-based environment it is hosted on.