Which of the following is considered good cause for a QME's unavailability longer than 90 days within the calendar year?

The rationale behind categorizing sabbaticals as good cause for a QME's unavailability longer than 90 days within the calendar year is rooted in the nature and intent of a sabbatical. A sabbatical typically signifies a significant and structured break from professional duties that aims to further a QME's education, research, or personal development. This kind of leave is often planned in advance and can bring substantial benefits to the QME's practice, making it more justifiable for an extended absence.

In comparison, while vacation plans and continuing education may be important for personal and professional growth, they are generally viewed as shorter-term absences. Administrative leave, while potentially a valid reason depending on circumstances, usually pertains to employment-related matters rather than the personal development aspect associated with a sabbatical. Therefore, sabbaticals stand out as a valid justification that aligns with the QME's role in ensuring ongoing competence and contributing to the profession in a meaningful way during periods of unavailability.