All vessels, their owners, and/or agents, and all other users of the Port facilities shall be held responsible for all damages to the facilities and environmental resources occasioned by them. The Port Authority reserves approval authority over repair methods and reserves the right to repair, contract for same, or otherwise be repaired any and all damages to docks, wharves, warehouses or transit sheds, equipment, rail, or shop facilities, water, heat, and light facilities, pavements, soils and environmental resources caused by common carriers, vessels, their owners and agents, stevedoring companies, or any other parties using the facilities. The Port Authority may detain any vessel or other watercraft responsible for damage to the facilities until sufficient security has been posted for the amount of damage. The expense of replacement or repair will be billed against the user (s) for such damage as herein stated at cost plus twenty percent (20%). The discharge or marshalling of heavy articles or cargo in such quantities as will cause excessive weight upon piers aprons or wharves will not be permitted without prior written permission of the Executive Director, and then only at the sole risk of the vessel, their owners, charterers and their agents, the terminal operator, stevedores or owner of the property. (For specific berth restrictions, contact the port staff Engineer). Nothing contained herein shall be deemed to exculpate or relieve the Port Authority and its employees from liability due to negligence.