Sigma Xi & National Postdoctoral Association Joint Membership Form

Please complete this form to apply for Sigma Xi-NPA joint membership. This membership option offers a 20 percent discount off the annual dues rates for both organizations. You will be notified within two weeks of the status of your application. If you have any questions, please send an email to or call 800-243-6534. 
Sigma Xi – NPA Joint Membership Rates:
Graduate Students: $60.00
Postdoctoral Scholars (for up to three years after graduation): $72.00
Postdoctoral Scholars (more than three years after graduation): $128.00
An additional $20.00 will be added for one-time Sigma Xi membership initiation fee.
Are you currently a degree seeking student? *

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Sigma Xi Membership Information

Are you applying for full or associate membership in Sigma Xi?: *

If accepted for membership, do you hereby pledge yourself, in accordance with the purposes and objectives of Sigma Xi, The Scientific Research Honor Society, to encourage original investigations in science, to foster companionship and cooperation among scientists, to maintain honor, integrity and honesty in all scientific activities, and to assume the other continuing responsibilities of membership?