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SIGMA Registration Policy

Registration Rates

Payment must be received within 30 days of registration to guarantee registration rate. Any registration having balance due after 30 days may cancelled or subject to current registration rate. All registrations need to be paid in full prior to the start of the conference.

Credit Card Policy

Due to new credit card processing rules, SIGMA is no longer able to accept credit card information on mailed/emailed/faxed forms. 

For registration assistance other than online registration, please call the SIGMA office at 703-709-7000 ext. 1487.

Cancellation Policy

All cancellations requests must be made in writing to Requests received before March 13,  2020 will receive a full refund. Requests received between March 13, 2020 and April 3, 2020 will receive a 50% refund. Refunds will not be issued after April 3, 2020.

If hotel rooms have been reserved in the SIGMA block, they must be cancelled prior to receiving any eligible refund.

Please contact SIGMA at or 703-709-7000 ext.1487 if you have any questions