American Academy List of Classes and Sections

Since 1815, the Academy has elected members by class and section. At that time, the classes were simply Mathematical and Physical Sciences; Natural History; and Moral Sciences, Philology, and Fine Arts.
As fields and specialties have changed over time, the Academy’s classes and sections have evolved. Below is the current class and section list.

Member Directory is online, as is information about Nominations and Elections

Class I – Mathematical and Physical Sciences
Section 1 – Mathematics, Applied Mathematics, and Statistics
Section 2 – Physics
Section 3 – Chemistry
Section 4 – Astronomy, Astrophysics, and Earth Sciences
Section 5 – Engineering and Technology
Section 6 – Computer Sciences

Class II – Biological Sciences
Section 1 – Biochemistry, Biophysics, and Molecular Biology
Section 2 – Cellular and Developmental Biology
Section 3 – Neurosciences
Section 4 – Evolution and Ecology
Section 5 – Medical Sciences
S
ection 6 – Microbiology and Immunology

Class III – Social and Behavioral Sciences
Section 1 – Psychological Sciences
Section 2 – Economics
Section 3 – Political Science
S
ection 4 – Law
Section 5 – Anthropology and Archaeology
Section 6 – Sociology, Demography, and Geography
Section 7 – Education

Class IV – Humanities and Arts
Section 1 – Philosophy and Religious Studies
Section 2 – History
Section 3 – Literature and Language Studies
Section 4 – Literature
Section 5 – Visual Arts
Section 6 – Performing Arts

Class V – Leadership, Policy, and Communications
Section 1 – Journalism, Media, and Communications
Section 2 – Business, Corporate, and Philanthropic Leadership
Section 3 – Educational and Academic Leadership
Section 4 – Public Affairs and Public Policy
Section 5 – Scientific, Cultural, and Nonprofit Leadership