Which part is mandatory in individual training records?

Part II is mandatory in individual training records because it typically contains essential information regarding the individual's training progression, competencies, and qualifications. This section is crucial for ensuring that personnel meet necessary training requirements and standards, which are vital for effective performance in their roles.

In contrast, while Parts I and III and Annex A might contain valuable information, they may not be specifically mandated to be included in every individual's training record. Therefore, establishing Part II as a mandatory component helps maintain a consistent and comprehensive training documentation process across the organization, ensuring that all personnel can meet their operational requirements effectively.