Assembly Membership
When a person becomes a member of the American Thoracic Society he or she is entitled to become a "primary member" of one Assembly and "secondary member" of two additional Assemblies. Of the 16,249 ATS members (as of December 3, 2020) 14,917 have declared a primary Assembly. Please see the list below for the numbers of primary members, secondary, International and primary & secondary members in each Assembly:
| Assembly | Primary Members | Secondary Members | Primary & Secondary Members | Primary & Secondary Members (U.S. only) |
Primary Members (U.S. only) |
International Members | Percentage of International Members |
|---|---|---|---|---|---|---|---|
| Allergy, Immunology and Inflammation (AII) | 1218 | 1960 | 3178 | 1789 | 718 | 1389 | 43.71% |
| Behavioral Science & Health Services Research (BSHSR) | 284 | 582 | 866 | 693 | 249 | 173 | 19.98% |
| Clinical Problems (CP) | 2545 | 2637 | 5182 | 3352 | 1559 | 1830 | 35.31% |
| Critical Care (CC) | 3894 | 3077 | 6971 | 5595 | 3254 | 1376 | 19.74% |
| Enviromental, Occupational and Population Health (EOPH) | 454 | 769 | 1223 | 837 | 316 | 386 | 31.56% |
| Nursing (NUR) | 130 | 70 | 200 | 173 | 116 | 27 | 13.50% |
| Pediatrics (PEDS) | 1235 | 467 | 1702 | 1243 | 909 | 459 | 26.97% |
| Pulmonary Circulation (PC) | 855 | 1707 | 2562 | 1949 | 628 | 613 | 23.93% |
| Pulmonary Infections and Tuberculosis (PI-TB) | 989 | 2034 | 3023 | 1765 | 510 | 1258 | 41.61% |
| Pulmonary Rehabilitation (PR) | 259 | 571 | 830 | 408 | 110 | 422 | 50.84% |
| Respiratory Cell and Molecular Biology (RCMB) | 978 | 1530 | 2508 | 1658 | 668 | 850 | 33.89% |
| Respiratory Structure and Function (RSF) | 817 | 1904 | 2721 | 1736 | 484 | 985 | 36.20% |
| Sleep and Respiratory Neurobiology (SRN) | 649 | 1111 | 1760 | 1073 | 399 | 687 | 39.03% |
| Thoracic Oncology | 610 | 871 | 1481 | 960 | 399 | 521 | 35.18% |
| Genetics & Genomics (GG): | 1179 members | ||||||
| Medical Education (Med Ed) | 2714 members | ||||||
| Terrorism & Inhalation Disasters (TID) | 522 members | ||||||
| Members with NO Assembly Affiliation | 1332 members | ||||||
