Contract number: [ complete ]  Contract conditions of December 2015  contract. It must also take out supplementary insurance as reasonably required by  standard practice in the industry. Upon request, the contractor must provide  evidence of insurance coverage to the contracting authority.  II.6.3  The contractor is liable for any loss or damage caused to the contracting authority  during or as a consequence of performance of the contract, including in the event  of subcontracting, but only to an amount not exceeding three times the total  amount of the contract. However, if the damage or loss is caused by the gross  negligence or wilful misconduct of the contractor or of its  personnel or  subcontractors, the contractor is liable for the whole amount of the damage or loss.  II.6.4  If a third party brings any action against the contracting authority in connection  with the  performance of the contract , the contractor must assist the contracting  authority in the legal proceedings, including by intervening in support of the  contracting authority upon request.  If the contracting authority’s liability towards the third party is established and that  such liability is caused by the contractor during or as a consequence of the  performance of the contract , Article II.6.3 applies. II.6.5 If the contractor is composed of two or more economic operators (i.e. who  submitted a joint tender), they are all jointly and severally liable to the contracting  authority for the  performance of the contract .  II.6.6 The contracting authority is not liable for any loss or damage caused to the  contractor during or as a consequence of  performance of the contract , unless the  loss or damage was caused by wilful misconduct or gross negligence of the  contracting authority.  II.7. CONFLICT OF INTERESTS AND PROFESSIONAL CONFLICTING INTERESTS  II.7.1 The contractor must take all the necessary measures to prevent any situation of  conflict of interest or professional conflicting interest . II.7.2 The contractor must  notify  the contracting authority in writing as soon as possible  of any situation that could constitute a  conflict of interest or a  professional  conflicting interest during the  performance of the contract . The contractor must  immediately take action to rectify the situation. The contracting authority may do any of the following:  (a) verify that the contractor’s action is appropriate; (b) require the contractor to take further action within a specified deadline; (a) its  personnel ; (b) any natural person with the power to represent it or take decisions on its behalf; (c) third parties involved in the  performance of the contract , including subcontractors. II.7.3  The contractor must pass on all the relevant obligations in writing to:  The contractor must also ensure that the persons referred to above are not placed in  a situation which could give rise to conflicts of interest. 19 