A licensee shall at all times be responsible for ascertaining that his or her employees subject to registration are currently registered or have made proper application for registration as provided in this article. The licensee may not have in his or her employment a person whose registration has expired, or been revoked, denied, suspended, or canceled.
Source:
Section 7598.16, https://leginfo.legislature.ca.gov/faces/codes_displaySection.xhtml?lawCode=BPC§ionNum=7598.16..