3. Responsibility for errors in data and drawings

The Contractor bears all responsibility for any errors or omissions in its drawings and other such details, as well as for checking all drawings and information submitted to the Employer in written format.

4. Design alteration procedures

If it becomes necessary to introduce alterations during the works implementation at any stage of the project, the Contractor shall contact the Employer in writing requesting to consider the possibility to make alterations. Such written request for alterations shall be made in Ukrainian/Russian language and indicate the following:

а) the reason for alterations;

b) grounds of the alterations proposed, which shall be aimed at improvement of characteristics, quality, efficiency or safety of the facility;

c) methods, which will be used by the Contractor when making any design (construction) alterations;

d) drawings (diagrams) with introduced alterations.

Information to be included in any request of the Contractor to change the approved design, is defined by the Contract.

Any alteration is unacceptable until the Employer's written approval is received.

Coordination of the design alteration by the Employer does not reduce the Contractor's responsibility.

5. Works implementation program and schedule

In its Tender, the Tenderer shall submit the Works Implementation Program and Works Implementation Schedule.

The Works Implementation Program and Works Implementation Schedule shall include different work stages, from the beginning of the Contract till its completion, for example: designing, coordination of the project, procurement of materials, manufacturing, factory testing, supply, installation, construction, tests and commissioning, in accordance with the Works Implementation Schedule required by the Employer.

The Works Implementation Program shall contain, but not limited, at least the following:

а) description of the main work stages;

b) the sequence in which the works shall be performed, including the planned duration for each stage, as well as information about prepared special technical documents, date of purchase,manufacture, inspection, supply, construction, installation, testing and commissioning;

c) the list of technical documents, date of submission to the Employer's review, approvals and coordination;

d) the list and description of the inspections and tests to be performed;

e) the general description of the methods to be applied at the basic stages of works, indicating the required level of skills of workers and type of equipment required at the site for each stage of works;

f) duration of the work stages (in calendar days), as well as sequence numbers of days of their beginning and ending, counted from the Contract's effective date.

6. Project for Organization of Construction

By the date to be determined by the Contract, the Contractor shall develop and submit for approval and endorsement by the Employer the Project for Organization of Construction (POC), which along with the general requirements of DBN A.3.1-5-96 "Organization of construction production" shall provide:

а) actions to ensure the structures installation accuracy, acceptable spatial accuracies of structures during their assembly and installation at their designed positions;

б) structural stability calculation;

в) safe working conditions.

The Project for Organization of Construction shall take into account the requirements of the Rules of Operation of Electrical Equipment (PUE).

The POC shall include the requirements of the works implementation program and schedule. No substantial deviations from the POC are allowed without informing the Employer in writing. If the progress of works does not meet the POC, the Employer may propose to the Contractor to review the POC to reflect any necessary changes in order to complete the works by the guaranteed dates