(1) The department and the commission shall adjust existing wildlife management rules and plans to implement 87-1-321 through 87-1-325.
(2) The department and the commission may adopt rules for determining sustainability. The commission shall consider average carrying capacity and use generally accepted animal unit factors for each species in each commission region.
(3) Any rules adopted by the department pursuant to subsection (2) must be adopted in a timely manner.
(4) The commission may offer for sale at one-half the cost of a regularly priced license Class A-9 resident antlerless elk B tag licenses and Class B-12 nonresident antlerless elk B tag licenses to be used as prescribed by the commission on private lands in hunting districts where the elk population is above the sustainable population number established pursuant to 87-1-323 as determined by the department's most recent elk survey count.