The college is a
constituent school of Duke University and contains a
dependent system of
residential colleges. Although it is a "college," its highest ranking officer is its Dean. The interim dean of Trinity College of Arts & Sciences is Mohamed Noor, previously Dean of Natural Sciences for three years. Former dean
Valerie Ashby, professor of
chemistry, left her second term early to become President of the
University of Maryland, Baltimore County in 2022. Each dean is appointed to the position for a five-year term, and the position serves under the university's
provost and
president. Due to Duke's interdisciplinary approach, it is common for faculty to hold cross-college appointments; however, all faculty of the college are also faculty within Duke's
Graduate School of Arts and Sciences. In the beginning of the twenty-first century, Duke renovated the undergraduate residential college experience. In the present day, the residential colleges are funded and controlled by the University, not by the college. Each residential college has a specific dean, headed by one residential "Associate Dean." Note, these deans are not the heads of specific departments, but rather general undergraduate deans. Each department has an independent department head who oversees both the undergraduate and graduate education within the specific department. == Residential colleges ==