Final answer:
The renewal timeframe after the expiration date of Dec 31st depends on the specific regulations of the issuing authority. It is critical to refer to the official guidelines or contact the issuing body directly to obtain accurate information.
Step-by-step explanation:
The question 'How long after expiration on Dec 31st can an applicant renew?' seems to refer to a policy or regulatory matter, typically found within the context of licenses, certifications, or similar credentials. The exact period within which an applicant can renew after the expiration date can vary greatly depending on the specific rules and regulations of the issuing authority or organization.
In many cases, there are grace periods that allow for renewal after the expiration date, but it is essential to consult the relevant regulations or guidelines provided by the issuing body to determine the correct timeframe for renewal. If this pertains to a professional license, such as those for healthcare providers, lawyers, or engineers, the standards would be set by the respective professional boards or regulatory agencies.