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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 16,271 ATS members (as of October 5, 2018) 13,695 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:

Assemblyprimary membersSecondary Membersprimary & secondary membersprimary & secondary (U.S. only)primary (U.S. only)International MembersPercentage of International Members
Allergy, Immunology and Inflammation (AII) 1300 1853 3153 1780 756 1373 43.55%
Behavioral Science & Health Services Research (BSHSR) 247 512 759 610 211 149 19.63%
Clinical Problems (CP) 2370 2306 4676 3033 1459 1643 35.14%
Critical Care (CC) 3315 3032 6347 5089 2729 1258 19.82%
Enviromental, Occupational and Population Health (EOPH) 446 735 1181 792 306 389 32.94%
Nursing (NUR) 111 63 174 149 99 25 14.37%
Pediatrics (PEDS) 1097 451 1548 1150 831 398 25.71%
Pulmonary Circulation (PC) 901 1691 2592 1993 678 599 23.11%
Pulmonary Infections and Tuberculosis (PI-TB) 814 1645 2459 1468 430 991 40.30%
Pulmonary Rehabilitation  (PR) 247 464 711 355 106 356 50.07%
Respiratory Cell and Molecular Biology (RCMB) 1052 1616 2668 1724 720 944 35.38%
Respiratory Structure and Function (RSF) 831 1853 2684 1709 491 975 36.33%
Sleep and Respiratory Neurobiology (SRN) 556 1103 1659 1014 323 645 38.88%
Thoracic Oncology 408 711 1119 686 262 433 38.70%
Genetics & Genomics (GG): 952 members
Medical Education (Med Ed) 1664 members
Terrorism & Inhalation Disasters (TID) 421  members
Members with NO Assembly Affiliation 2576 members
Last Reviewed: October 2018