Sec. 124.051. OPEN-END CREDIT PLAN. A credit union may enter into a written agreement with a member under which: (1) the member is allowed to borrow money from time to time; and (2) interest may from time to time be computed on the unpaid balance. Acts 1997, 75th Leg., ch. 1008, Sec. 1, eff. Sept. 1, 1997.