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 15,781 ATS members (as of May 11, 2020) 14,465 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) | 1249 | 1907 | 3156 | 1797 | 730 | 1359 | 43.06% |
| Behavioral Science & Health Services Research (BSHSR) | 291 | 568 | 859 | 697 | 249 | 162 | 18.86% |
| Clinical Problems (CP) | 2389 | 2471 | 4860 | 3157 | 1472 | 1703 | 35.04% |
| Critical Care (CC) | 3687 | 3065 | 6752 | 5465 | 3086 | 1287 | 19.06% |
| Enviromental, Occupational and Population Health (EOPH) | 454 | 762 | 1216 | 828 | 314 | 388 | 31.91% |
| Nursing (NUR) | 123 | 67 | 190 | 170 | 111 | 20 | 10.53% |
| Pediatrics (PEDS) | 1180 | 468 | 1648 | 1252 | 915 | 396 | 24.03% |
| Pulmonary Circulation (PC) | 890 | 1665 | 2555 | 1978 | 672 | 577 | 22.58% |
| Pulmonary Infections and Tuberculosis (PI-TB) | 925 | 1850 | 2775 | 1703 | 504 | 1072 | 38.63% |
| Pulmonary Rehabilitation (PR) | 244 | 523 | 767 | 404 | 112 | 363 | 47.33% |
| Respiratory Cell and Molecular Biology (RCMB) | 1042 | 1577 | 2619 | 1746 | 718 | 873 | 33.33% |
| Respiratory Structure and Function (RSF) | 844 | 1837 | 2681 | 1738 | 504 | 943 | 35.17% |
| Sleep and Respiratory Neurobiology (SRN) | 598 | 1072 | 1670 | 1035 | 366 | 635 | 38.02% |
| Thoracic Oncology | 549 | 793 | 1342 | 874 | 369 | 468 | 34.87% |
| Genetics & Genomics (GG): | 1170 members | ||||||
| Medical Education (Med Ed) | 2367 members | ||||||
| Terrorism & Inhalation Disasters (TID) | 494 members | ||||||
| Members with NO Assembly Affiliation | 1316 members | ||||||
