switch situated on the cab bulkhead. Units operated by Abellio ScotRail have additionally been fitted with door-control panels near the centre sets of doors for the convenience of the guard. Nine units used by Greater Anglia were transferred to East Midlands Railway in 2019, at which point they were renumbered into the 156/9 subclass (156419 becoming 156919, and so on) to indicate that their public address and passenger information systems were incompatible with EMR's existing Class 156 units. A number of these units started to transfer to Northern Trains from December 2021 onwards, at which point they were returned to their original numbers. Operations British Rail On 10 November 1987, 156401 conducted its first test run from Washwood Heath to Banbury. Between January and July 1988, 156401-156429 were delivered to Crown Point TMD entering service on 16 May 1988 on new services from East Anglia to North West England as well as existing services from Norwich and Cambridge to Birmingham. They also operated boat trains from Harwich to Blackpool and later Liverpool. The remaining 85 were delivered to Heaton, Neville Hill, Haymarket and Inverness. With the Class 155 units withdrawn due to faulty door mechanisms, 25 were transferred to Cardiff from December 1988, with the last remaining until November 1989. In this guise they operated services as far south as Portsmouth. In May 1991, six were transferred from Crown Point to Derby Etches Park. On 15 June 1989, 156502 was sent to the Netherlands as part of the Dutch Railways 150th anniversary celebrations. It returned on 10 July. On 21 October 1993, 156405 became the first Sprinter to accrue 1 million miles, whilst working the 10:10 Great Yarmouth to Norwich service. The first 100 were painted in Provincial sector's livery of blue and beige with light blue stripe. Twenty units based at Tyseley depot, 156401–156419 and 156422, were later repainted into Regional Railways Express livery after the rebranding of Provincial. The last fourteen units were operated by Strathclyde PTE, and carried an orange and black livery. Following the delivery of the Class 158s in the early 1990s, the 156s began to be cascaded to less important services. In the early 1990s, British Rail was looking to save costs on rural routes, and decided that operating two-car trains was too expensive. The company planned to convert a number of Class 156 units into single-car vehicles, named as Class 152. In the