Section 39.04.01.101 - REGISTRATION PERIOD01.Annual Period. The period for the registration of aircraft in the state of Idaho runs from January 1 through December 31 of each year.02.Annual Registration Closing Date. The closing date for the annual registration is the first Monday of November in each year. A list of unregistered aircraft, as of that date, will be forwarded to the proper county assessor for inclusion in personal property assessment due on the fourth Monday in November, as directed by Section 63-301, Idaho Code.Idaho Admin. Code r. 39.04.01.101