Rule 23.3.701 - EXPIRATION OF REGISTRATION PERIODS(1) All registrations for motor vehicles subject to anniversary date registration expire on the last day of the month preceeding the anniversary registration period. A grace period for registration exists between the 1st and 25th days of the month. Motor vehicles must be registered not later than the 25th of the month corresponding to the anniversary registration period. Thereafter, motor vehicles not properly registered are in violation of law and subject to the fines, penalties and sanctions imposed by statute.(2) A lien for all fees and taxes due upon these motor vehicles attaches as of the first day of the anniversary month and continues until all the fees and taxes are paid.Sec. 61-3-315 MCA; IMP, 61-3-315 and 61-3-503 MCA;