When must a class A, B, or C licensee register their employees with the department of public safety?

The requirement for a Class A, B, or C licensee to register their employees with the department of public safety is set within a specific timeframe that balances the need for timely reporting and operational flexibility. The correct answer involves the stipulation that registration must occur no sooner than three days and no later than seven days following the commencement of the employee’s employment.

This timeframe ensures that the licensee has a reasonable opportunity to assess the new employee's qualifications and readiness for the role while aligning with regulatory compliance timelines. It also allows for the processing of paperwork and background checks, which are critical in the security industry, where thorough vetting is required.

The other options suggest timelines that are either too immediate or do not align with the established regulations, which aim to provide a structured approach to employee registration without compromising the effectiveness of the operations of security personnel.