IV.2.5.3.  Proposals to include new  Products involving new features or functions not previously  available amongst the Product listed in the framework contract’s Annexes, shall only be  considered in the context of the principal  Product  classifications and specifications covered  by the call for tenders referred to in the preamble of the framework contract.  IV.2.5.4.  Even if a  Product is approved by the contracting authority, any incompatibility with Tender  specifications and/or Service Level Agreement that becomes apparent in the course of its  use shall be resolved by the contractor as swiftly as possible and at no cost to the contracting  authority.  IV.2.5.5.  Evaluation procedures and trials of new products before inclusion in the price list may be  specifically defined in the framework contract.  IV.2.6.1.  The contractor shall ensure that the Product, or replacing Product, are marketed or  available during the lifetime of the framework contract from the date of their inclusion in the  relevant Annex of the framework contract.  IV.2.6.2.  The contractor shall ensure that maintenance of the  Product  delivered under this framework  contract may be requested and provided for a period of at least five (5) years from the date  of signature of their  Consignment note , or, where applicable, of their  Certificate of  Conformity , whichever is the latest.  IV.2.7.1.  From the date of signature of the  Consignment note , or, if applicable, of the  Certificate  of Conformity , whichever is the latest, t h e c o n t r a c t i n g a u t h o r i t y may make  unrestricted use of the  Product s under normal operating conditions. the contracting  authority may use the  Product s for  Services  it is carrying out for other Institutions, Agencies  or Bodies. If the  Product s are rented or leased, the right of use applies for the duration  specified in the specific contract. If a guarantee applies, maintenance may not start until the  guarantee has expired.  IV.2.7.2.  The contractor must ensure that the contracting authority may add to a  System  or  connect to it, either directly or via telecommunications networks, compatible  Product s of any  origin.  IV.2.7.3. The contractor shall not exert any right of inspection over the contracting authority’s use of  the  Product s.  IV.2.6.  Product  life  IV.2.7.  Use of Products  IV.2.8.  Documentation The contractor shall provide the contracting authority with its Documentation and updates, in  as many copies, whether in machine-readable form or on paper, as are stated in the  framework contract or a specific contract.  Page 15 of 40 