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Membership must be current to be listed in the directory
Note: Associate = A; Architect/Engineer = A/E; Accredited Installer = AI; Association = AS; Certified GeoExchange Designer = CGD; Dealer/Contractor = D/C; Ex-Officio = Ex-Officio; Foundation = F; Individual = I; Manufacturer = M; Product Distributor = PD; Student = S; Trainer = T; Utility = U; Accredited Vertical Loop Installer = VI ; Certified Geothermal Inspector = CGI .
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Membership Type, Accreditations, Certifications