9.b.2 The contracting authority reserves the right to verify that such measures are adequate and may require additional measures to be taken if necessary. The contractor shall ensure that its staff, including its management, is not placed in a situation which could give rise to conflict of interests. Without prejudice to its obligation under the contract, the contractor shall replace, immediately and without compensation from the contracting authority, any member of its staff exposed to such a situation. 

9.b.3 The contractor shall refrain from any contact which would compromise its independence or that of its personnel. 

9.b.4 The contractor shall limit its role in connection with the project to the provision of the supplies described in the contract. 

9.b.5 The contractor and anyone working under its authority or control in the performance of the contract or on any other activity may be excluded from access to other EU budget/EDF funds available under the same project. However, if the contractor is able to prove that his involvement in previous stage of the project does not constitute unfair competition, he may participate, subject to prior approvail of the contracting authority. 

## Article 10 - Origin 

10.1. All goods shall have their origin in any eligible source country as defined in the instructions to tenderers and the special conditions. 

10.2. The contractor must certify that the goods tendered comply with this requirement, specifying their countries of origin. It may be required to provide more detailed information in this respect. 

10.3. The contractor shall document the origin at the time of provisional acceptance. Failure to comply with this obligation may lead, after formal notice, to termination of the contract and/or suspension of payment. 

## Article 11 - Performance guarantee 

11.1. The contractor shall, together with the return of the countersigned contract, furnish to the contracting authority with a guarantee for the full and proper execution of the contract. The amount of the guarantee shall be as specified in the special conditions. It shall be in the range of 5 and 10% of the total contract price, including any amounts stipulated in addenda to the contract. 

11.2. The performance guarantee shall be held against payment to the contracting authority for any loss resulting from the contractor's failure to perform its contractual obligations under the contract. 

11.3. The performance guarantee shall be in the format provided for in the contract and may be provided in the form of a bank guarantee, a banker's draft, a certified cheque, a bond provided by an insurance and/or bonding company, an irrevocable letter of credit or a cash deposit made with the contracting authority. If the performance guarantee is to be provided in the form of a bank guarantee, a banker's draft, a certified cheque or a bond, it shall be issued by a bank or bonding and/or insurance company approved by the contracting authority. 

11.4. The performance guarantee shall be denominated in the currency in which the contract is payable. No payments shall be made in favour of the contractor prior to the provision of 

