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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 16,028 ATS members (as of January 14, 2019) 13,622 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) 1281 1829 3110 1757 747 1353 43.50%
Behavioral Science & Health Services Research (BSHSR) 250 506 756 618 215 138 18.25%
Clinical Problems (CP) 2311 2315 4626 3016 1429 1610 34.80%
Critical Care (CC) 3317 2979 6296 5062 2735 1234 19.60%
Enviromental, Occupational and Population Health (EOPH) 454 727 1181 804 317 377 31.92%
Nursing (NUR) 116 60 176 153 104 23 13.07%
Pediatrics (PEDS) 1075 430 1505 1120 818 385 25.58%
Pulmonary Circulation (PC) 879 1672 2551 1979 666 572 22.42%
Pulmonary Infections and Tuberculosis (PI-TB) 849 1683 2532 1526 449 1006 39.73%
Pulmonary Rehabilitation  (PR) 237 479 716 368 107 348 48.60%
Respiratory Cell and Molecular Biology (RCMB) 1045 1590 2635 1726 724 909 34.50%
Respiratory Structure and Function (RSF) 827 1814 2641 1692 488 949 35.93%
Sleep and Respiratory Neurobiology (SRN) 556 1070 1626 995 325 631 38.81%
Thoracic Oncology 425 707 1132 701 280 431 38.07%
Genetics & Genomics (GG): 971 members
Medical Education (Med Ed) 1702 members
Terrorism & Inhalation Disasters (TID) 419 members
Members with NO Assembly Affiliation 2406 members
Last Reviewed: January 2019