13.55 (1) (b) Except as otherwise provided in this paragraph, only senators and representatives to the assembly who are members of the bar association of this state may be appointed to seats designated for the offices of senator and representative to the assembly under par. (a). A seat designated for one of these offices that cannot be filled as a result because of this requirement, or because a senator or representative to the assembly is unwilling or unable to serve on the delegation, may be filled by a former senator or representative to the assembly from the applicable political party who served on the commission during his or her term as a senator or representative to the assembly and who is a member of the bar association of this state. The former senator or representative to the assembly may be appointed as are members of standing committees and shall serve for a 2-year term as provided under par. (a). This paragraph does not apply if the National Conference of Commissioners on Uniform State Laws permits individuals to become voting commissioners or associate members of the National Conference of Commissioners on Uniform State Laws without regard to membership in the bar of the state that the individual represents.