The licensee or registrant shall keep all client files secure and confidential in accordance with the provisions of Health-General Article, Title 4, Subtitle 3, Annotated Code of Maryland. Client files are the property of the: Licensee or registrant when working as a sole proprietor or independent contractor; or Practice owner if the practitioner is an employee. Client files shall be released in a timely manner when authorized by the client in writing or compelled by law or regulation. The licensee or registrant may assess fees for duplicating client records for the patient or for another health care provider in accordance with Health-General Article, §4-403, Annotated Code of Maryland.