Europol Public Information  Goods; for the storage of the Goods on the sub-contractor’s premises and/or warehouse/storage  facilities. Upon acceptance at the end destination, full ownership of the Goods shall pass to Europol and the  Contractor  shall be entitled to invoice Europol for the Purchase Order / Specific Contract amount due.  For the purposes of Article II-3 of the general conditions, where delivery is arranged via an approved  sub-contractor, Delivery notes in electronic format and using standard forms of such approved sub- contractors shall be acceptable unless their accuracy/validity can be contested (acting reasonably).  Supplementary principles may apply as regards delivery of Goods and the shipment process of Goods  taking into consideration specific technical and/or security requirements of the (end) destination site.  The following provision shall supplement Article II-3 (“Supply of Goods”):  Unless specified otherwise in the  Purchase Order and/or the  Specific Contract , conformity shall be  evidenced by the signing of a certificate to this effect by Europol no later than thirty (30) days after the  date of delivery. Non-conformity shall be notified in writing. Certificate of Conformity shall be delivered  when the Goods are delivered and installed at end destination.  Signature of the Certificate of Conformity shall constitute final acceptance of the Goods. No Certificate  of Conformity shall be signed where the Goods are (temporarily) stored in storage/warehouse facilities.  Unless specified otherwise in the  Purchase Order and/or the  Specific Contract , maintenance of the  Goods shall start when the Certificate of Conformity is signed by both parties.  The following provision shall supplement Article II-5 (“Liability”):  17 NB within the EU Europol is exempt from taxation and duties Page 20 of 79  Europol’s initials:  Contractor’s initials:  Specific provisions related to insurance  Article I-16  Specific provisions related to the supply of goods  Article I-15  9. In case Europol requests transport services, the  Contractor  shall:  a. arrange safe delivery of the Goods to Europol Premises or to a warehouse/storage facility or to another end/final destination;  b. advise on and supervise (re)packaging if required to ensure optimal packaging of the  Goods; c. liaise with non EU Member States in order to obtain the necessary permissions to  deploy the Goods outside the EU;  d. arrange importation to the end destination (for non-EU states) including payment of all  necessary duties and taxes 17  which shall be re-chargeable to Europol; 