(b) No water carrier shall sell, lease, assign, mortgage, or otherwise dispose of, or encumber the whole or any part of its property necessary or useful in the performance of transportation services for the public or any certificate of public convenience and necessity; nor shall any water carrier, by any means, directly or indirectly, merge or consolidate its property, certificates of public convenience and necessity, or any part thereof, with any other carrier, without first having secured from the public utilities commission an order authorizing it so to do, unless the water carrier is either: (1) Disposing a fully depreciated asset or property with a zero net book value; provided that the disposal: (A) Is made to an unaffiliated entity; and(B) Results in a zero or net reduction to the water carrier's rate base; or(2) Donating a fully depreciated asset or property with zero net book value to a charitable or nonprofit organization.Every sale, lease, assignment, mortgage, disposition, encumbrance, merger, or consolidation that requires authorization from the public utilities commission under this subsection and is made other than in accordance with an order of the commission authorizing the same shall be void.