By this ad hoc bus operation is meant in this offering bus transport which is ordered ad hoc - ie. on-going - when there is a need for passenger transport with one or more buses. The fixed routes, which are run daily, weekly or monthly for an extended period, are not, as a general rule, part of the journey covered by this agreement, but can be agreed with the Supplier.

The City of Copenhagen uses ad hoc bus services in connection with various activities, where people associated with the City of Copenhagen, including among others. the municipality's employees, as well as children and adults using the municipality's various services, must be taken by bus for these activities, such as excursions, courses and colonial stays, etc.