| Broad field | Detailed field |
|---|---|
| Biological, agricultural, and environmental life sciences | Agricultural and food sciences |
| Animal sciences | |
| Food sciences and technology | |
| Plant sciences | |
| Soil sciences | |
| Biochemistry | |
| Biophysics | |
| Cell, cellular biology, and molecular biology | |
| Immunology | |
| Microbiological sciences | |
| Fish, fisheries, wildlife and wildlands science and management | |
| Forestry | |
| Natural resource conservation, research, management, and policy | |
| Zoology, animal biology | |
| Biomathematics, bioinformatics, and computational biology | |
| Botany and plant biology | |
| Epidemiology, ecology, and population biology | |
| Genetics | |
| Neurobiology and neuroscience | |
| Nutrition sciences | |
| Pharmacology and toxicology | |
| Physiology, pathology, and related sciences | |
| Biological and biomedical sciences, general | |
| Biological and biomedical sciences, other | |
| Computer and information sciences | Computer science |
| Information science, studies | |
| Computer and information sciences, other | |
| Mathematics and statistics | Applied mathematics |
| Mathematics | |
| Statistics | |
| Mathematics and statistics, other | |
| Physical sciences, geosciences, stmospheric, and ocean sciences | Astronomy and astrophysics |
| Inorganic chemistry | |
| Organic chemistry | |
| Chemistry, other, except biochemistry | |
| Atmospheric sciences and meteorology | |
| Geological and earth sciences, geosciences | |
| Ocean sciences and marine sciences | |
| Oceanography, chemical and physical | |
| Physics | |
| Psychology | Clinical psychology |
| Counseling and applied psychology | |
| Educational and school psychology | |
| Industrial and organizational psychology | |
| Research and experimental psychology | |
| Psychology, general | |
| Psychology, other | |
| Social sciences | Economics |
| Political science and government | |
| Public policy analysis | |
| Sociology, demography, and population studies | |
| Anthropology | |
| Area, ethnic, cultural, gender, and group studies | |
| Geography and cartography | |
| International relations and national security studies | |
| Linguistics | |
| Urban studies, affairs | |
| Social sciences, other | |
| Engineering | Aerospace, aeronautical, and astronautical engineering |
| Chemical engineering | |
| Civil engineering | |
| Computer engineering | |
| Electrical, electronics, and communications engineering | |
| Mechanical engineering and robotics | |
| Metallurgical and materials engineering | |
| Agricultural engineering | |
| Bioengineering and biomedical engineering | |
| Engineering mechanics, physics, and science | |
| Industrial and manufacturing engineering | |
| Nuclear engineering | |
| Engineering, other | |
| Health | Communication disorders sciences and services |
| Hospital and medical administration services | |
| Pharmacy, pharmaceutical sciences, and administration | |
| Public health | |
| Registered nursing, nursing administration, nursing research | |
| Health sciences, other |
