The Northern Ireland Driver & Vehicle Agency (Licensing) requires a Service Provider to undertake the sale of vehicle registration numbers (marks) by auction, tender and direct sales. The contract for the service will be valid for three years with an option for the Agency to extend the contract for two further periods of one year each. It is envisaged that four auctions will be required each year in or around March/June/September/December (this may vary at the discretion of DVA Licensing and in conjunction with discussions with the Contractor). The number of other sales events will be agreed with the Contractor, taking into account the availability of suitable registration marks and the capacity of the market. The Agency will have the right to determine the number and frequency of sales events but will have due regard to advice from the Contractor. The Agency can provide no guarantees with regard to the frequency of sales or the volume offered for sale. All costs associated with the provision of sales services, including but not limited to, renting, leasing, hiring of premises and public relations/marketing of such service will be borne by the Contractor.