c) a general description of the methods which the contractor proposes to adopt for  executing the contract; and  d) such further details and information as the project manager may reasonably require.  13.2. The special conditions shall specify the time limit within which the programme of  implementation of the tasks must be submitted to the project manager for approval. They  may set time limits within which the contractor must submit all or part of the detailed  drawings, documents and items. They shall also state the deadline for the project  manager's approval or acceptance of the programme of implementation, detailed  drawings, documents and items. 13.3. The approval of the programme by the project manager shall not relieve the contractor of  any of its obligations under the contract. 13.4. No material alteration to the programme shall be made without the approval of the project  manager. If, however, the progress of the implementation of the tasks does not conform to  the programme, the project manager may instruct the contractor to submit a revised  programme in accordance with the procedure laid down in Article 13.  14.1. If the special conditions so provide, the contractor shall submit to the project manager for  approval:  a) the drawings, documents, samples and/or models, according to the time limits and  procedures laid down in the special conditions or in the programme of implementation  of the tasks; b) such drawings as the project manager may reasonably require for the implementation  of the tasks.  14.2. If the project manager fails to notify its decision of approval referred to in Article 14.1  within the time limits referred to in the contract or the approved programme of  implementation of the tasks, such drawings, documents, samples or models shall be  deemed to be approved at the end of the time limits specified. If no time limit is specified,  they shall be deemed to be approved 30 days after receipt.  14.3. Approved drawings, documents, samples and models shall be signed or otherwise  identified by the project manager and shall not be departed from except as otherwise  instructed by the project manager. Any contractor's drawings, documents, samples or  models which the project manager refuses to approve shall be modified to meet the  requirements of the project manager and resubmitted by the contractor for approval.  Within 15 days of being notified of the project manager's remarks, the contractor shall  make the requisite corrections, adjustments etc. to the documents, drawings etc. The  corrected or adjusted documents, drawings etc. shall be resubmitted for the project  manager's approval under the same procedure.  14.4. The contractor shall supply additional copies of approved drawings in the form and  numbers stated in the contract or in subsequent administrative orders.  14.5. The approval of the drawings, documents, samples or models by the project manager  shall not relieve the contractor from any of its obligations under the contract.  14.6. The project manager shall have the right at all reasonable times to inspect all drawings,  documents, samples or models relating to the contract at the contractor's premises.  August 2020 c4e_annexigc_en  Page 13 of 36  Article 14 -  Contractor's drawings 