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Join the ATS

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When you join online, your membership will be active within one hour.

Read about the benefits of ATS membership.

If you prefer not to join online, you may use the PDF paper application. To open the application you will need Adobe Reader which may be downloaded at no charge from the Adobe website. Return your completed application to ATS by one of the following:

Fax Number:

+1 (212) 315-8689




American Thoracic Society
Membership Department
25 Broadway 18th Floor
New York, NY 10004, USA


Contact the ATS Concierge at membership@thoracic.org or call +1 (212) 315-8684 from Monday to Friday, 9:00AM – 5:00PM Eastern Time.