Corresponding membership is open to physicians, radiation physicists and radiation or cancer biologists who devote a substantial portion of his or her time to radiation oncology or radiation sciences and who reside outside of the U.S. Members shall either be board certified by a board recognized by the Board of Directors as being of equivalent rank to the American Board of Radiology or shall hold membership in a national or regional radiation oncology society in their country or region of practice. Dues for corresponding members shall not include an amount covering a subscription to the official journal of the Society.

ASTRO corresponding member dues are $60 U.S. annually.

Corresponding members have access to the following benefits and services offered by the Society:

• Meeting registration discounts.
• Discounts on products to improve your practice.
• Quarterly ASTROnews subscription.
• Bi-weekly ASTROgram e-mail newsletter subscription.
• Free hardcopy and online access to the ASTRO Annual Membership Directory.
  
• Exclusive online access to ASTROnews and ASTROgram e-newsletters.
• Early registration opportunities in addition to discount rates for ASTRO meetings.
  
• Specifically for ASTRO physicist members:
  • Physics Plenary session at the ASTRO Annual Meeting.
    
  • Physics-related grants (contact the Research Department for more details).
  • Physics education day at the ASTRO Annual Meeting.
• Free Web site template for member radiation oncology facilities.
• Discount on classified advertising in ASTROnews.