If so required by Hirer, the Owner shall supply the required number of trained and properly skilled personnel to operate the Equipment, and the costs whereof are deemed to have been included in the Fee payable to the Owner. The personnel supplied shall remain under the employ of the Owner at all material times, and the Owner shall be responsible for all acts / default / neglect / failure of the personnel. The Owner shall be solely responsible for all salary and other payments to the personnel. The Supervision on site shall be Hirer responsibility and Hirer is also responsible for all acts or omissions of the operator while performing duties under his supervision