Final answer:
Employment agency personnel must de-register from their professional designation when they resign or no longer work in employment agency activities, following the specific regulatory guidelines for the designated period.
Step-by-step explanation:
When it comes to the registration of employment agency personnel (EAP), if an individual resigns or is no longer engaged in employment agency (EA) work, they are typically required to de-register from their professional designation. The specific timeframe for this de-registration process may vary depending on the regulatory body or jurisdiction governing employment agencies. It's important to consult the relevant employment standards or regulatory guidelines to determine the exact period within which de-registration should occur.