By definition of the Society, ENAR includes those portions of the United States and Canada east of approximately 104 degrees West Longitude. Membership is open to all residents of this region.
Individuals usually join as Regular members. The Society also operates a Student membership. Applicants for all classes of membership must be approved by the appropriate Regional or National Secretary or, in the case of applicants for "At Large" membership, by the General Secretary. The annual membership dues include a subsciption to Biometrics and the Biometric Bulletin. Annual dues are determined separately by each Region and Group and paid to the Regional Treasurer or National Secretary. The membership includes dues paid by each Region and Group to the International Office to cover the cost of Biometrics and the Biometric Bulletin.