(1) The department may amend its management objectives for a body of water if after a reasonable period of time the department concludes that:

(a) the management actions have succeeded and the department has accomplished the management objectives and that continued implementation of the existing action plan is no longer necessary; or

(b) the management actions have failed to accomplish the management objectives, and that continued implementation of the existing action plan is unlikely to accomplish the desired outcome.

(2) Revisions to the management objectives may prescribe management actions that are more tolerant or less tolerant of the presence of the unauthorized species and must include a rationale for any changes. The department shall report any revisions to the management objectives to the commission.