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 16,234 ATS members (as of August 17, 2020) 15,207 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) | 1267 | 1972 | 3239 | 1851 | 751 | 1388 | 42.85% |
| Behavioral Science & Health Services Research (BSHSR) | 301 | 594 | 895 | 721 | 260 | 174 | 19.44% |
| Clinical Problems (CP) | 2502 | 2645 | 5147 | 3368 | 1542 | 1779 | 34.56% |
| Critical Care (CC) | 3968 | 3136 | 7104 | 5754 | 3330 | 1350 | 19.44% |
| Enviromental, Occupational and Population Health (EOPH) | 470 | 790 | 1260 | 856 | 324 | 404 | 32.06% |
| Nursing (NUR) | 134 | 69 | 203 | 177 | 120 | 26 | 12.81% |
| Pediatrics (PEDS) | 1271 | 482 | 1753 | 1314 | 963 | 439 | 25.04% |
| Pulmonary Circulation (PC) | 913 | 1736 | 2649 | 2054 | 680 | 595 | 22.46% |
| Pulmonary Infections and Tuberculosis (PI-TB) | 976 | 2014 | 2990 | 1814 | 522 | 1176 | 39.33% |
| Pulmonary Rehabilitation (PR) | 262 | 554 | 816 | 420 | 115 | 396 | 48.53% |
| Respiratory Cell and Molecular Biology (RCMB) | 1050 | 1598 | 2648 | 1769 | 733 | 879 | 33.19% |
| Respiratory Structure and Function (RSF) | 865 | 1942 | 2807 | 1811 | 517 | 996 | 35.48% |
| Sleep and Respiratory Neurobiology (SRN) | 633 | 1091 | 1724 | 1070 | 393 | 654 | 37.94% |
| Thoracic Oncology | 595 | 850 | 1445 | 945 | 399 | 500 | 34.60% |
| Genetics & Genomics (GG): | 1238 members | ||||||
| Medical Education (Med Ed) | 2712 members | ||||||
| Terrorism & Inhalation Disasters (TID) | 529 members | ||||||
| Members with NO Assembly Affiliation | 1027 members | ||||||
