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 15,410 ATS members (as of March 2, 2021) 14,314 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) | 1143 | 1899 | 3042 | 1733 | 680 | 1309 | 43.03% |
| Behavioral Science & Health Services Research (BSHSR) | 275 | 593 | 868 | 700 | 246 | 168 | 19.35% |
| Clinical Problems (CP) | 2451 | 2616 | 5067 | 3288 | 1510 | 1779 | 35.11% |
| Critical Care (CC) | 3842 | 2946 | 6788 | 5464 | 3231 | 1324 | 19.51% |
| Enviromental, Occupational and Population Health (EOPH) | 453 | 745 | 1198 | 818 | 315 | 380 | 31.72% |
| Nursing (NUR) | 129 | 63 | 192 | 167 | 114 | 25 | 13.02% |
| Pediatrics (PEDS) | 1201 | 455 | 1656 | 1211 | 883 | 445 | 26.87% |
| Pulmonary Circulation (PC) | 820 | 1671 | 2491 | 1890 | 593 | 601 | 24.13% |
| Pulmonary Infections and Tuberculosis (PI-TB) | 994 | 2045 | 3039 | 1787 | 521 | 1252 | 41.20% |
| Pulmonary Rehabilitation (PR) | 257 | 562 | 819 | 397 | 109 | 422 | 51.53% |
| Respiratory Cell and Molecular Biology (RCMB) | 901 | 1472 | 2373 | 1588 | 626 | 785 | 33.08% |
| Respiratory Structure and Function (RSF) | 773 | 1858 | 2631 | 1684 | 447 | 947 | 35.99% |
| Sleep and Respiratory Neurobiology (SRN) | 647 | 1057 | 1704 | 1036 | 405 | 668 | 39.20% |
| Thoracic Oncology | 608 | 884 | 1492 | 973 | 400 | 519 | 34.79% |
| Genetics & Genomics (GG): | 1162 members | ||||||
| Medical Education (Med Ed) | 2813 members | ||||||
| Terrorism & Inhalation Disasters (TID) | 533 members | ||||||
| Members with NO Assembly Affiliation | 1096 members | ||||||
