available etc.), the  Contracting Authority  reserves the right to increase the price up to  50% of the initial specific contract value (and extensions orders as specified above) 3 . In  Lot 2 the procedure will result in the conclusion of multiple framework contracts  (FWC) in cascade.  The FWC will be concluded in the form of separate, but identical, contracts with a  maximum number of 3 (three) contractors provided that there are enough tenderers  that have access to the procurement, are not excluded, satisfy the selection and award  criteria, and comply with the Tender Specifications. The tenders deemed admissible as a result of the evaluation will be ranked in descending  order to establish a list of contractors and a sequence in which they will be offered  specific contracts during the implementation of the FWC.  Without prejudice to section 7 of the Service Level Agreement (annex 16 to the Technical  Specifications), in case of unavailability of the first contractor (e.g. having failed the  deadlines, having proposed unsuitable consultants, having conflict of interest (see  section 3.2.4), etc.), the second best ranked framework contractor will be approached,  and so forth. The cascade process will terminate either with the award of the assignment in question  to one of the contractors, or with the failure to award the assignment to any contractor.  In the event of failure, the  Contracting Authority  will withdraw the request, or redefine  the assignment and start the procedure based on a new request with the first ranked  contractor. Once the  Contracting Authority  agrees to the offer of a contractor the specific  contract will be signed. The process of implementation of the FWC in cascade is set out in Article I.4.3 of the  Draft Framework Contract. The maximum value of the FWC shall be:  This is an indicative estimate of the volumes to be ordered over the whole duration of  the FWC. These volumes are estimates only and there is no commitment as to the exact  quantities to be ordered. The actual volumes will depend on the quantities which the  contracting authority will order through specific contracts. In any case the FWC ceiling,  i.e. the maximum amount to be spent under the FWC, shall not be exceeded.  $^{3}$  As provided for in Article 172.3 of the EU Financial Regulation 9 1.7 Volume and value of the contract: how much do we plan to  buy?  Cascade mechanism: Lot 1: EUR 15 000 000  over its potential duration of 6 years. Lot 2: EUR 61 000 000  over its potential duration of 6 + 2 years.