(a) Agencies shall implement environmental management systems (EMS) at all appropriate organizational levels. Where contractor activities affect an agency's environmental management aspects, EMS requirements shall be included in contracts to ensure proper implementation and execution of EMS roles and responsibilities.(b) The contracting officer shall- (1) Specify the EMS directives with which the contractor must comply; and(2) Ensure contractor compliance to the same extent as the agency would be required to comply, if the agency operated the facilities or vehicles.