Advancing Professional Development
We help the world breathe.
The American Thoracic Society improves global health by advancing research, patient care, and public health in pulmonary disease, critical illness, and sleep disorders.
Transforming Patient Care
ATS Joins Lung Transplant Foundation in First-Ever Lung Transplant Awareness Day
This initiative honors patients, caregivers, donors and medical professionals while raising awareness about transplant access and outcomes. Learn more and listen to an upcoming ATS Breathe Easy podcast on new transplant guidelines.
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Leading Scientific Discovery
Patient-Facing Research Participants Sought for Pulmonary Function Test Study
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Advancing Professional Development
Nominate a Colleague for the Prestigious Elizabeth A. Rich, MD Award
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Transforming Patient Care
Bronchiectasis Education Center: Ask the Expert with Anne O’Donnell, MD
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Advancing Professional Development
ATS Breathe Easy Podcast: Better Breathing with Anti-Inflammatory Rescue Therapies, Part 2
Get Involved
ATS Conference News
Read the official news source for ATS 2025 and your guide to the International Conference, featuring previews and coverage of the biggest sessions, research presentations, discussion topics, and more.
Join an Assembly or Section
Learn about our 14 Assemblies and 3 Sections and get involved.
Our Commitment to Diversity, Equity & Inclusion
The ATS promotes diversity, equity, inclusion, accessibility, and belonging for everyone.
ATS Codes of Conduct
Learn about our Codes of Conduct and how to report concerns.
Get Involved in Committees
Sign Up for ATS & Assembly Committees
Join MECOR (International)
ATS provides Methods in Epidemiological, Clinical and Operations Research (MECOR) in Africa, China, India, Southeast Asia, Latin America, and Turkiye.
ATS Ed+
Enrich your clinical knowledge and competence, learn from the experts at your own pace, and find relevant opportunities to earn CME/MOC.
Join Us
When you become a member of our global American Thoracic Society community of 30,000+ health care providers and researchers, you’ll have access to:
+ Cutting-edge science through ATS journals and publications.
+ Discounts on the Annual ATS International Conference, CME, and ATS Ed+ products.
+ A robust, collaborative online medical community of peers in our ATS DocMatter Community.
Advance respiratory health globally with a donation