Rule 31.16 - Supplemental Citation of Legal Authority(a) Generally. A party may file a notice of supplemental legal authority at any time before the court enters its decision. If the court has set oral argument, the notice should be filed at least 5 days before argument, unless the party shows good cause for a later filing.(b) Form. The notice of supplemental legal authority must state concisely and without argument the legal proposition supported by the supplemental authority. The notice also must clearly identify the page numbers of the party's brief that the party intends to supplement and the relevant pages of the supplemental authority.Added by August 31, 2017, effective 1/1/2018.