| Aaer | Aerospace Engineering |
| Aahi | History of Art |
| Aalc | Asian Languages and Cultures |
| Aane | Anesthesiology |
| Aant | Anthropology |
| Aaos | Atmospheric, Oceanic and Space Science |
| Aarc | Architecture |
| Aast | Astronomy |
| Abch | Biological Chemistry |
| Abme | Biomedical Engineering |
| Abms | Biologic and Materials Sciences |
| Abpr | Biophysics Research Division |
| Abst | Biostatistics |
| Acar | Cariology, Restorative Science and Endodontics |
| Acdb | Cellular and Developmental Biology |
| Ache | Chemical Engineering |
| Achm | Chemistry |
| Aciv | Civil and Environmental Engineering |
| Acln | Clinical Sciences |
| Acls | Classical Studies |
| Acmp | Composition |
| Acnd | Conducting |
| Acom | Communication Studies |
| Adan | Dance |
| Adea | Dentistry, aggregated small departments |
| Ader | Dermatology |
| Aeco | Economics |
| Aecs | Electrical Engineering and Computer Science |
| Aeeb | Ecology and Evolutionary Biology |
| Aegl | English Language and Literature |
| Aehs | Environmental Health Sciences |
| Aeme | Emergency Medicine |
| Aepi | Epidemiology |
| Afam | Family Medicine |
| Agen | Human Genetics |
| Ageo | Geological Sciences |
| Ager | Germanic Languages and Literature |
| Ahbe | Health Behavior and Health Education |
| Aheb | Health Behavior and Health Education |
| Ahis | History |
| Ahmp | Health Management and Policy |
| Aint | Internal Medicine |
| Aioe | Industrial and Operations Engineering |
| Ajaz | Jazz and Improvisation Studies |
| Alng | Linguistics |
| Amat | Mathematics |
| Ambi | Microbiology and Immunology |
| Amcd | Molecular, Cellular, and Development Biology |
| Amdc | Medicinal Chemistry |
| Amde | Medical Education |
| Amec | Mechanical Engineering |
| Amse | Materials Science and Engineering |
| Amsl | Musicology |
| Amtr | Music Theory |
| Amtt | Musical Theatre |
| Amua | Music, aggregated small departments |
| Amue | Music Education |
| Anav | Naval Architecture and Marine |
| Anes | Near Eastern Studies |
| Aneu | Neurology |
| Anrs | Nuclear and Radiological Science |
| Ansu | Neurosurgery |
| Aobg | Obstetrics and Gynecology |
| Aomp | Oral Medicine/Pathology/Oncology |
| Aoms | Oral and Maxillofacial Surgery |
| Aopd | Orthodontics and Pediatric Dentistry |
| Aopt | Ophthalmology and Visual Science |
| Aorg | Organ |
| Aort | Orthopaedic |
| Aoto | Otolaryngology |
| Apat | Performing Arts Technology |
| Aped | Pediatrics |
| Apha | Pharmacy, aggregated small departments |
| Aphc | Pharmacology |
| Aphl | Philosophy |
| Apho | Physiology |
| Aphs | Pharmaceutical Sciences |
| Aphy | Physics |
| Apia | Piano |
| Apmr | Physical Medicine and Rehabilitation |
| Apol | Political Science |
| Appg | Periodontics Prevention and Geriatrics |
| Apsi | Psychiatry |
| Apso | Psychology |
| Apth | Pathology |
| Arad | Radiology |
| Ardo | Radiation Oncology |
| Arll | Romance Languages and Literature |
| Asas | Social and Administrative Sciences |
| Asll | Slavic Languages and Literature |
| Asoc | Sociology |
| Asta | Statistics |
| Astr | String Instruments |
| Asur | Surgery |
| Athd | Theatre and Drama |
| Auro | Urology |
| Avoc | Voice |
| Awnd | Winds and Percussion |