28 of 40 Construction of Giresun Wastewater Treatment Plant  Tender Dossier Volume 3 Employer’s Requirements  Section 04: General Requirements for the Execution and Completion of the Works  project plan shall include a programme for completing such inspections and tests in a coordinated  manner and in accordance with the requirements of the Contract.  The Contractor shall provide all labor, plant, materials and services required for testing and  inspecting the works.  The Contractor shall submit to the Engineer full details of inspections and tests to be carried out at  least 21 days in advance. Attendance at and acceptance of tests and inspections of the works shall  not prejudice the right of the Engineer to reject any part of the works if it subsequently fails to  comply with the requirements of the Contract.  The Contractor shall keep a record of all tests and inspections, irrespective of whether or not they  show compliance with the Contract and shall issue this record to the Engineer on completion of  each test and inspection.  4.18.2 Off-Site Inspection and Testing  4.19 Tests on Completion  4.19.1 General  4_Vol3_d4.3_Section 4 General Requirements_en_GIR_rev6  Without completion of any stage of Test on Completion, if the Works or Sections have been  Taking-Over in line with sub-clause 10.3 of general conditions of contract, the Contractor shall  The Engineer may require additional tests to prove compliance with the Employer’s Requirements.  All such tests shall be at the Contractor's expense.  The Contractor shall arrange at his own cost the supply and distribution of electricity, potable  water, telephone, compressed air and other services as are necessary to the tests and shall provide,  maintain and remove on completion all pipes, cables and fittings which carry such services to his  operations. All electrical installations forming part of such temporary installations shall comply  with current Turkish regulations.  Unless all units and piping system shall be cleaned, the Test on Completion shall not be  commenced.  All tests must be carried out in the presence of the Engineer, or such other person appointed for  this purpose, unless the Engineer states otherwise in writing. Tests shall be carried out to the  satisfaction of the Engineer. Certificates shall mention shortcomings to be corrected by the  Contractor in a list of defects.  Commissioning and performance tests shall be carried out using trained, experienced staff. The  Commissioning Engineer shall have a minimum of five years’ experience in the commissioning  and performance testing of similar plants.  The Contractor shall give the Engineer not less than twenty-one (21) days’ notice of his intention  to commence the tests on completion.  (Yellow Book, Clause 9)  No material or item of plant and equipment shall be delivered to site without prior inspection,  testing and certification, where applicable, unless the Engineer confirms, in writing, that such  inspection, testing and/or certification is not required.  The Contractor shall complete routine and functional works tests to ensure the item is in  compliance with the specifications. The Contractor shall give the Engineer the opportunity to  attend and witness such tests by giving notice in due time.  All major items of plant and equipment (e.g. blowers, pumps, and generators as appropriate) shall  satisfactorily pass a factory acceptance test (FAT) to design working conditions prior to dispatch. 