Section 422:21 - State Registration CertificatesI. The department is empowered to issue registration certificates for aircraft, airports, and commercial aviation operators and to establish the requirements for and the terms, conditions and limitations of such certificates.II. The effective date for commercial aviation operator certificates, aircraft dealer registrations and airport registrations shall be January 1 of each year.III. Effective dates for state aircraft registration certificates shall be the first day of the month and continue through the last day of the following twelfth month and shall be based upon the first numeral of the aircraft federal registration mark or N number so that registration for aircraft with N numbers beginning with the numeral 1 shall become effective on January 1 of a year and end December 31 of the same year and aircraft with N numbers beginning with the numeral 2 shall become effective on February 1 of a year and end January 31 of the subsequent year and so forth. IV. A state registration certificate shall normally remain in force for one year following the date of its issue, unless it is an aircraft registered out of cycle, in which case paragraph V shall apply.V. Aircraft registration fees shall be prorated for shorter or longer periods. If an original aircraft registration is issued in one of the next 3 months preceding and including the month corresponding to the first numeral of the aircraft N number, the registration shall expire on the last day of the second anniversary of the month corresponding to the first numeral of the aircraft N number. 2002, 6:1, eff. July 1, 2002.