Which of the following must a chiropractor do regarding board notifications for their employees?

The correct approach for a chiropractor regarding board notifications for their employees is to notify the board at the start of employment. This requirement ensures that the regulatory body is informed about who is working under the chiropractor's supervision right from the beginning of their employment. It allows for proper tracking and oversight of licensed personnel within the practice, which enhances patient safety and compliance with state regulations.

Notifying the board immediately at the start of employment helps to maintain accurate records of all professionals working in the chiropractic office. It also ensures that each employee's credentials and qualifications are verified and compliant with state laws, which is crucial for maintaining the integrity of the chiropractic profession.

The other options imply an approach that either delays notification until after certain conditions, such as training completion or exam results, which does not align with the need for immediate identification and registration of personnel within the practice. This can lead to gaps in regulatory oversight, which is why timely and proactive notification is essential.