The Norwegian Tax Administration invites tenderers to a qualification for a competition with negotiations for the procurement of computer centre services, including computer rooms with exclusive area, in two different colocation computer centres in the Oslo area. Services included in the procurement are, among other things, redundant electricity supply in addition to backup components UPS and emergency generators, redundant cooling, redundant network accesses, physical and logical security as well as a guard services. The Norwegian Tax Administration currently leases locations with a computer centre and associated operations and maintenance contracts . These contracts expire in the years up to 2028, and the Norwegian Tax Administration must then move their equipment to new data centres. The objective of the procurement is to cover the Contracting Authority's need for computer centre services in two different computer centres in the Oslo area (called Area 2 and Area 3) when the relevant lease contracts expire. The contracting authority shall enter two contracts. The scope of the two contracts are identical except the time period where the Delivery Day shall occur (see Annex 3 on this). The delivery day for contract shall be a day in the period from 1 February 2027 until and including 31 May 2027, but the delivery day for the second lot shall be a day in the period from and including 10 January 2028 to and including 31 January 2028. Tenderers can choose what time period the Delivery day the tender applies to, or whether it applies both periods of time. As a result of the Norwegian Tax Administration's risk and vulnerability assessment, the data centres are required to as the services offered from in the two contracts are located at least 5 km in the aerial line from each other. Geographical separation and minimum distance will reduce the risk of both data centres being affected by natural events or events created by threat actors. In addition to the data centres being at least 5 km apart in the air line, it is required that only one of the data centres is located in Groruddalen ́s valley. Groruddalen's valley is located in the eastern part of Oslo and considered in this competition to stretch from the centre of Oslo to Stovner and between Bjerke in west to the border with Lørenskog municipality in the east. Each contract has an estimated value of 85-195 MNOK over 15 years from the delivery day.