The Institute for Energy and Transport (IET) intends to enter into a contract for cleaning services, with a distinction made between regular and specific work.

Regular work covers daily cleaning services, as well as the cleaning of mainly offices and sanitation facilities in buildings on the Petten site (surface area of approximately 20 000 m2) and periodic cleaning services (e.g. related to the Clubhouse in Bergen, North Holland).

Specific work covers cleaning windows, maintaining floors, façades, land around the buildings, ventilation grids, etc.