A person's registration as a veterinary practitioner—
(a) in the case of registration under section 19—
(i) commences—
(A) on the day the board issues the registration document; or
(B) on the date stated in the registration document; and
(ii) continues in force for the period of up to 12 months stated in the registration document unless the registration is suspended or cancelled before the end of that period; and
(b) in the case of registration under section 24 or section 25—
(i) commences on the day after the day the registration that it renews ended; and
(ii) continues in force for a period of 12 months unless the registration is suspended or cancelled before the end of that period.