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 15,449 ATS members (as of November 15, 2022) 15,048 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) | 1312 | 2016 | 3328 | 1959 | 750 | 1369 | 41.14% |
| Behavioral Science & Health Services Research (BSHSR) | 346 | 706 | 1052 | 849 | 305 | 203 | 19.30% |
| Clinical Problems (CP) | 2378 | 2782 | 5160 | 3432 | 3432 | 1728 | 33.49% |
| Critical Care (CC) | 3790 | 3004 | 6794 | 5514 | 3215 | 1280 | 18.84% |
| Environmental, Occupational and Population Health (EOPH) | 457 | 818 | 1275 | 904 | 333 | 371 | 29.10% |
| Nursing (NUR) | 130 | 69 | 199 | 179 | 118 | 20 | 10.05% |
| Pediatrics (PEDS) | 1272 | 513 | 1785 | 1360 | 980 | 425 | 23.81% |
| Pulmonary Circulation (PC) | 922 | 1683 | 2605 | 1999 | 691 | 606 | 23.26% |
| Pulmonary Infections and Tuberculosis (PI-TB) | 1026 | 2158 | 3184 | 1937 | 568 | 1247 | 39.16% |
| Pulmonary Rehabilitation (PR) | 292 | 667 | 959 | 501 | 133 | 458 | 47.76% |
| Respiratory Cell and Molecular Biology (RCMB) | 1008 | 1613 | 2621 | 1814 | 723 | 807 | 30.79% |
| Respiratory Structure and Function (RSF) | 866 | 2024 | 2890 | 1921 | 539 | 969 | 33.53% |
| Sleep and Respiratory Neurobiology (SRN) | 648 | 1009 | 1657 | 1003 | 394 | 654 | 39.47% |
| Thoracic Oncology | 601 | 890 | 1491 | 1021 | 419 | 470 | 31.52% |
| Genetics & Genomics (GG): | 1367 members | ||||||
| Medical Education (Med Ed) | 3273 members | ||||||
| Terrorism & Inhalation Disasters (TID) | 566 members | ||||||
| Members with NO Assembly Affiliation | 401 members | ||||||
