International 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 international members shall include an amount covering a subscription to the official journal of the Society.

International member dues are $300 U.S. annually.

International members have access to all ASTRO benefits and services including a subscription to International Journal of Radiation Oncology*Biology*Physics, also known as the Red Journal.

ASTRO benefits and services include:

• Meeting registration discounts.
• Discounts on products to improve your practice.
• Quarterly ASTROnews subscription
• Bimonthly ASTROgram e-mail newsletter.
• Free hardcopy and online access to the ASTRO Annual Membership Directory.
• Exclusive online access to ASTROnews quarterly journal and ASTROgram e-newsletters.
• Listing in "Find a Radiation Oncologist" on ASTRO.org and RTAnswers.org Web sites.
• Early registration opportunities in addition to discount rates for ASTRO meetings.
• Discount on classified advertising in ASTROnews.
• Integrating the Healthcare Enterprise Radiation Oncology (IHE-RO) Task Force.
• Free Web site template for member radiation oncology facilities.
• Complimentary online subscription to the Green Journal.