In the case of service or supply contracts which are awarded regularly or are to be renewed within a given period, the basis for calculating the estimated contract value shall be any of the following:
I gcás conarthaí seirbhíse nó soláthair atá á ndámhachtain go rialta nó atá le hathnuachan laistigh de thréimhse áirithe, is ar bhonn ceann ar bith díobh seo a leanas a ríomhfar luach measta an chonartha: