; (ii) includes timelines and benchmarks for agency comments to submitted plans and final approval of such plans; (iii) is consistent with applicable law; and (iv) minimizes the costs of the process to the reviewing agency and the entity submitting the plans; and (B) amendments to the plans in a prompt manner if changed conditions necessitate a modification to a plan. (3) Notification The review and approval process under paragraph (2) shall— (A) include notification by the agency of any changed conditions that warrant a modification to a plan; (B) provide an opportunity for the owner or operator to submit a proposed plan amendment to address directly the changed condition