Convention Registration Information The NIEA is no longer taking on-line or check payments through the mail. We will be, however, taking payment on-site. The convention registration is not closed, but all methods of “pre-registration” are. Bring a check or a credit card to the convention and register at our on-site table. Convention Registration Form Printable PDF Version. Thank you and we look forward to seeing you in Seattle! The NIEA Staff. Click here to return to niea.org