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 15,502 ATS members (as of June 3, 2021) 14,577 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) | 1171 | 1928 | 3099 | 1781 | 703 | 1318 | 42.53% |
| Behavioral Science & Health Services Research (BSHSR) | 285 | 623 | 908 | 739 | 258 | 169 | 18.61% |
| Clinical Problems (CP) | 2446 | 2676 | 5122 | 3326 | 1510 | 1796 | 35.06% |
| Critical Care (CC) | 3802 | 2914 | 6716 | 5389 | 3196 | 1327 | 19.76% |
| Enviromental, Occupational and Population Health (EOPH) | 463 | 765 | 1228 | 845 | 333 | 383 | 31.19% |
| Nursing (NUR) | 118 | 69 | 187 | 165 | 105 | 22 | 11.76% |
| Pediatrics (PEDS) | 1235 | 454 | 1689 | 1240 | 911 | 449 | 26.58% |
| Pulmonary Circulation (PC) | 832 | 1642 | 2474 | 1854 | 587 | 620 | 25.06% |
| Pulmonary Infections and Tuberculosis (PI-TB) | 1007 | 2080 | 3087 | 1781 | 511 | 1306 | 42.31% |
| Pulmonary Rehabilitation (PR) | 255 | 577 | 832 | 392 | 105 | 440 | 52.88% |
| Respiratory Cell and Molecular Biology (RCMB) | 907 | 1468 | 2375 | 1578 | 620 | 797 | 33.56% |
| Respiratory Structure and Function (RSF) | 793 | 1854 | 2647 | 1690 | 449 | 957 | 36.15% |
| Sleep and Respiratory Neurobiology (SRN) | 647 | 1048 | 1695 | 1029 | 394 | 666 | 30.29% |
| Thoracic Oncology | 616 | 877 | 1493 | 961 | 393 | 532 | 35.63% |
| Genetics & Genomics (GG): | 1205 members | ||||||
| Medical Education (Med Ed) | 2946 members | ||||||
| Terrorism & Inhalation Disasters (TID) | 523 members | ||||||
| Members with NO Assembly Affiliation | 925 members | ||||||
