Contracting Officer. The Contractor will be responsible for all unauthorized cutting or damaging of trees and shrubs, including damage due to careless or negligent operation of equipment, stockpiling of materials, or tracking of grass areas by equipment. bd. Care will be taken by the Contractor in felling trees authorized for removal to avoid any unnecessary damage to vegetation that is to remain in place. Any limbs or branches of trees broken during such operations shall be trimmed with a clean cut and painted with an approved tree pruning compound if required by the Con- tracting Officer. The Contractor will be liable for or may be required to replace or restore at his own expense all vegetation that may be destroyed or damaged which has not been protected or preserved as required herein. I-5 LIABILITY FOR DAMAGES - The Contractor shall be responsible for all damages to persons or property, in- cluding damages to underground property or underground utilities, which are indicated in the specifications or drawings or the existence of which are otherwise made known to the Contractor; that occur as a result of his fault or negligence in connection with the prosecution of the work, and shall be responsible for all materials delivered and work performed until completion and final acceptance of the construction. GC-IT CONDITIONS OF WORK - ADMINISTRATION II-1 BONDS AND INSURANCE - The Contractor shall procure and thereafter maintain only such bonds and insurance in such forms and in such amounts and for such periods of time as the U. S. Atomic Energy Commission may require in writing; all as set forth in Article XIX of the contract. II-2 IDENTIFICATION OF EMPLOYEES - All employees of the Contractor or any of his subcontractors must be cleared by the Contracting Officer before being allowed entrance to the Project Site. After such clearance, each employee will be furnished with an identification badge or card which the employee must display at all times while within the limits of the area. The identification badges or cards will be furnished by the Government at no cost to the Contractor, but the Contractor shall be responsible for their immediate return to the Contracting Officer upon release of an employee. GC-3