Local rule says this:
L.R. 7-9 Opposing Papers. Each opposing party shall, not later than ten (10) days after service of the motion in the instance of a new trial motion and not later than twenty-one (21) days before the date designated for the hearing of the motion in all other instances, serve upon all other parties and file with the Clerk either (a) the evidence upon which the opposing party will rely in opposition to the motion and a brief but complete memorandum which shall contain a statement of all the reasons in opposition thereto and the points and authorities upon which the opposing party will rely, or (b) a written statement that that party will not oppose the motion. Evidence presented in all opposing papers shall comply with the requirements of L.R. 7-6, 7-7 and 7-8.