Section 251.61 - Applications for new, changed, or additional uses or area(a) Holders shall file a new or amended application for authorization of any new, changed, or additional uses or area, including any changes that involve any activity that has an impact on the environment, other uses, or the public. In approving or denying new, changed, or additional uses or area, the authorized officer shall consider, at a minimum, the findings or recommendations of other affected agencies and whether to revise the terms and conditions of the existing authorization or issue a new authorization. Once approved, any new, changed, or additional uses or area must be reflected in the existing or a new authorization.(b) A holder may be required to furnish as-built plans, maps, or surveys upon completion of construction. 78 FR 33725 , June 5, 2013