Rule 6.6.7109 - SEPARABILITY(1) For the rules in this subchapter, if a part of a rule is invalid, all valid parts that are severable from the invalid part remain in effect. If a part of a rule is invalid in one or more of its applications, the part remains in effect in all valid applications that are severable from the invalid applications.NEW, 2008 MAR p. 136, Eff. 2/1/08.33-1-313, MCA; IMP, 33-2-523, MCA;