When must John Doe complete his continuing education requirements if his license expires on January 31, 2008?

The completion of continuing education requirements for a licensed physical therapist assistant is typically mandated to be done before the license expiration date. Therefore, if John Doe's license expires on January 31, 2008, he must fulfill his continuing education requirements beforehand to ensure that he maintains his eligibility to practice without interruption.

By completing the requirements by December 31, 2007, he ensures that he has satisfied the necessary conditions before the expiration and that he will have any necessary documentation in place should he need to present proof of completion upon license renewal. This timeframe allows for processing and does not leave him in a last-minute situation close to the expiration date. Therefore, completing his continuing education by the end of December, prior to his license expiration in January, is the most advisable course of action.