• For fixed price assignments : interim payments of 30% are allowed for order forms/ specific  contracts with duration equal or longer than six months or value higher than 50.000 euros.  Interim payments must be linked to contract deliverables. • For time and means assignments : Quarterly payments are allowed and will be defined in  the specific contracts/ order forms. Quarterly payments are paid based on the days/hours  actually performed (registered in timesheets approved by EFSA). • a list of all  pre-existing rights  incorporated into the  results  or parts of the results for interim  deliverables or a declaration stating that there are no such pre-existing rights, as provided  for in Article II.13.4; Contractors must submit a declaration stating clearly if any materials  incorporated into the interim deliverables are subject to pre-existing rights. The contractor  must explicitly declare which pre-existing rights are contained within the deliverables and  must warrant that those materials are free of rights or claims from creators or from any third  parties for any use the Contracting Authority has foreseen in art.I.10 of the contract. Absence  of such declaration when the deliverable and invoice is received will be understood by the  Contracting Authority as confirmation that there are no pre-existing rights within the  deliverables and the Contracting Authority will proceed with the payment.  • For fixed price assignment: deliverables indicated in the specific contract/ order form • For times and means assignment: timesheets approved by EFSA  • a list of all  pre-existing rights incorporated into the  results or parts of the results for all  deliverables or a declaration stating that there are no such pre-existing rights, as provided  for in Article II.13.4; Contractors must submit a declaration stating clearly if any materials  incorporated into the deliverables are subject to pre-existing rights. The contractor must  explicitly declare which pre-existing rights are contained within the deliverables and must  warrant that those materials are free of rights or claims from creators or from any third parties  for any use the Contracting Authority has foreseen in art.I.10 of the contract. Absence of such  declaration when the deliverable and invoice is received will be understood by the Contracting  Authority as confirmation that there are no pre-existing rights within the deliverables and the  Contracting Authority will proceed with the payment.  7  The contractor (or leader in the case of a joint tender) must send an invoice via email or e-PRIOR  for  payment of the balance due under a specific contract, as provided for in the tender specifications and  accompanied by the following: 1. The contractor (or leader in the case of a joint tender) may claim the payment of the balance in  accordance with Article II.21.6. 3. The contracting authority may suspend the time limit for payment specified in point (2.) in  accordance with Article II.21.7. Once the suspension is lifted, the contracting authority shall give its  approval and pay within the remainder of the time-limit indicated in point (2.) unless it rejects partially  or fully the submitted documents or deliverables.  2. The contracting authority must approve any submitted documents or deliverables and pay within  60 days from receipt of the invoice. The template declaration is provided in Annex [ insert annex no. ] of this contract.  The contractor (or leader in the case of a joint tender) must send an invoice via email or  e-PRIOR  for  the interim payment as provided for in the tender specifications, accompanied by the following:  I.6.3 Payment of the balance 