fails to remedy a defect or damage within the time limit stipulated in the notification, the  contracting authority may:  a) remedy the defect or the damage itself, or employ someone else to carry out the  tasks at the contractor's risk and cost, in which case the costs incurred by the  contracting authority shall be deducted from monies due to or from guarantees  held against the contractor or from both; or  b) terminate the contract.  32.5. In case of emergency, where the contractor cannot be reached immediately or, having  been reached, is unable to take the measures required, the contracting authority or the  project manager may have the tasks carried out at the expense of the contractor. The  contracting authority or the project manager shall as soon as practicable inform the  contractor of the action taken.  32.6. The warranty obligations shall be stipulated in the special conditions and technical  specifications. 32.7. Save where otherwise provided in the special conditions, the duration of the warranty  period shall be 365 days. The warranty period shall commence on the date of provisional  acceptance and may recommence in accordance with Article 32.3.  33.1. An after-sales service, if required by the contract, shall be provided in accordance with  the details stipulated in the special conditions. The contractor shall undertake to carry out  or have carried out the maintenance and repair of supplies and to provide a rapid supply  of spare parts. The special conditions may specify that the contractor must provide any or  all of the following materials, notifications and documents pertaining to spare parts  manufactured or distributed by the contractor:  a) such spare parts as the contracting authority may choose to purchase from the  contractor, it being understood that this choice shall not release the contractor from  any warranty obligations under the contract;  b) in the event of termination of production of the spare parts, advance notification to the  contracting authority to allow it to procure the parts required and, following such  termination, provision at no cost to the contracting authority of the blueprints,  drawings and specifications of the spare parts, if and when requested.  34.1. Upon expiry of the warranty period, or where there is more than one such period, upon  expiry of the latest period, and when all defects or damage have been rectified, the project  manager shall issue the contractor a final acceptance certificate and a copy thereof to the  contracting authority, stating the date on which the contractor completed its obligations  under the contract to the project manager's satisfaction. The final acceptance certificate  shall be issued by the project manager within 30 days after the expiration of the warranty  period or as soon as any repairs ordered under Article 32 have been completed to the  satisfaction of the project manager.  34.2. The contract shall not be considered to have been performed in full until the final  acceptance certificate has been signed or is deemed to have been signed by the project  manager.  August 2020 c4e_annexigc_en  Page 27 of 36  Article 34 -  Final acceptance  Article 33 -  After-sales service 