Rule 6.6.522 - PROHIBITION AGAINST PREEXISTING CONDITIONS, WAITING PERIODS, ELIMINATION PERIODS, AND PROBATIONARY PERIODS IN REPLACEMENT POLICIES OR CERTIFICATES(1) If a medicare supplement policy or certificate replaces another medicare supplement policy or certificate, the replacing issuer shall waive any time periods applicable to preexisting conditions, waiting periods, elimination periods and probationary periods in the new medicare supplement policy to the extent such time was spent under the original policy.(2) If a medicare supplement policy or certificate replaces another medicare supplement policy or certificate which has been in effect for at least six months, the replacing policy must not provide any time period applicable to preexisting conditions, waiting periods, elimination periods and probationary periods.NEW, 1990 MAR p. 1688, Eff. 9/1/90; AMD, 1993 MAR p. 1487, Eff. 7/16/93; AMD, 2004 MAR p. 313, Eff. 2/13/04.33-1-313 and 33-22-904, MCA; IMP, 33-15-303, 33-22-902, 33-22-904, 33-22-921, 33-22-922, 33-22-923, and 33-22-924, MCA;