______________ is the Department's school-administrative rule to promote and maintain a safe and secure education environment.

Chapter 19 refers to the Department's school-administrative rule specifically designed to promote and maintain a safe and secure educational environment in Hawaii's schools. This chapter outlines protocols and guidelines regarding student behavior and discipline, ensuring that safety is prioritized in the educational setting. It encompasses various policies regarding actions that can be taken when students engage in misconduct, aiming to create an atmosphere that is conducive to learning while protecting the well-being of all students and staff.

Other choices may relate to various policies, but they do not specifically pertain to the established framework for safety and discipline within the school context as effectively as Chapter 19 does. Thus, this makes Chapter 19 the most accurate answer to represent the Department's initiative for a secure educational environment.