An IMP is jointly developed and adopted by NeDNR and an NRD for integrated surface water and groundwater management within the NRD. This IMP between NeDNR and MRNRD is required under Neb. Rev. Stat. § 46-715 (1)(a). The entirety of MRNRD was determined to be fully appropriated on July 16, 2004, under the requirements of LB962 Laws 2004, Sec. 60 (3)(b). Under this legislation, areas for which NeDNR had previously determined a joint action plan was necessary, under prior law, were designated as fully appropriated as of the operative date of LB962 (2004).