Service contract conditions of December 2018  Contract number: [ complete ]  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 up 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, as well as in  the case of an action brought against the contracting authority by a third party for  breach of its intellectual property rights, 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 , including any action for alleged breach of intellectual  property rights, 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.7.1 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. (a) verify that the contractor’s action is appropriate; (b) require the contractor to take further action within a specified deadline; II.7.3  The contractor must pass on all the relevant obligations in writing to:  (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. The contracting authority may do any of the following:  II.7. CONFLICT  OF  INTEREST  AND  PROFESSIONAL  CONFLICTING INTERESTS  19 