Final answer:
The period of time in which an individual must apply for a new certificate to regain their certification after it has expired depends on the specific certification board and its requirements.
Step-by-step explanation:
If an individual's certification has expired, the period of time in which they must apply for a new certificate to regain their certification depends on the specific certification board and the requirements they have set.
Some certification boards may require individuals to retake the entire certification process if their certification has been expired for a long period of time,
while others may have a shorter grace period in which the individual can renew their certification without additional requirements.
It is important for individuals to check with the specific certification board or organization to determine the exact timeframe and process for regaining their certification.