What is NOT a requirement for a non-faculty coach accompanying students on trips?

The correct choice, which indicates that being a faculty member of the school is not a requirement for a non-faculty coach accompanying students on trips, is based on the understanding that non-faculty coaches are typically hired for their specific expertise in coaching and mentoring students, rather than their affiliation with the school’s teaching staff.

In many educational environments, the role of non-faculty coaches is to provide specialized skills or knowledge in a particular sport or activity, which does not inherently require them to be employees or faculty members of the school. Their qualifications can be based on their experience and competency in the sport rather than their status within the school's educational hierarchy.

The other requirements, such as being at least 21 years of age, completing in-service training in student behavior management, and passing a criminal background check, are established to ensure the safety and well-being of students. These requirements help to ensure that the non-faculty coach can handle situations effectively, has the appropriate background, and is capable of responsibly supervising students during trips. Thus, they are there to safeguard the interests of the students rather than to determine the coach's employment status within the school.