When is the annual renewal of a veterinary medication clerk's registration required?

The annual renewal of a veterinary medication clerk's registration is required on the registrant's birth anniversary date. This is a standard requirement across various professional licensing boards, where renewals are often tied to a personal milestone such as a birthday. This timing allows individuals to keep track of their renewal date and ensures that all practitioners maintain their licensure in a consistent manner without confusion regarding specific calendar dates.

The other options suggest annual renewals happening on fixed dates like the first day of the new year, every January 1st, or at the end of each calendar quarter. These dates do not consider the individual circumstances of the registrants, and renewing on a birth anniversary allows for an easier personal reminder system for license holders.