Join/Renew by Mail

OPTION 1: MAIL

Mail completed form with check, money order or credit card information to:

160 Rail Road, Suite 3

Chesterton, IN 46304

OPTION 2: ONLINE

JOIN or RENEW through our online portal.

Click here for the 2025 Membership Form (PDF).
This form can be downloaded if you prefer to submit your membership and payment by mail

Please note: we do not accept Purchase Orders as payment. Your membership will not be updated until payment is received.

To request an invoice, please email your request to: AATSPoffice@aatsp.org

Once payment is processed, refunds will not be granted. We accept Visa, Mastercard, and check.

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