(2) the employer reserves the right to ship or digging equipment are not considered to be used in the proposed dredging operation to impede or hinder the journey by boat during the dredging operation.
(2) the employer reserves the right to dredge or not to consider the proposed dredging equipment used in operations that impede or obstruct the vessel during dredging operations.
(2) the Employer reserves the right to not consider a device or dredging the proposed use in performance obstacles or hinder naval walk between performance dredging.