Which document must a licensee submit to change their status from inactive to active?

To change a license status from inactive to active, a licensee is required to submit a national criminal records check. This requirement ensures that the individual meets the necessary qualifications and maintains a standard of ethics and safety to practice in the field. A national criminal records check provides verification of the licensee's background, ensuring that there are no disqualifying criminal activities that would impact their ability to perform their duties effectively and responsibly.

The other options, while potentially relevant in different contexts, do not fulfill the specific requirement for activating a license. For instance, a previous license may be relevant to the history of the licensee's professional practice, but it does not suffice for changing status. Proof of insurance is important for active practice, but it is not the primary document necessary for the status change itself. A bank statement does not relate to the licensing status or qualifications in this context. Thus, the national criminal records check stands out as the mandatory document needed for this process.