The Canal Zone Study Group (CZSG), with over 500 members worldwide, promotes the collecting and study of all aspects of Canal Zone philately and of materials relating to the Canal Zone. It fosters friendship among collectors, disseminates knowledge of CZ philately and aids members in acquiring and/or disposing of philatelic materials.
Members receive The Canal Zone Philatelist, an award-winning quarterly newsletter which features articles on all aspects of Canal Zone collecting and information about activities of the organization.
Members also receive a free copy of handbooks as they are published by the CZSG. The CZSG is the authoritative source for publications on Canal Zone stamps and postal history. (Back issues of the newsletter and handbooks are available for purchase.
Members of the CZSG are entitled to sell Canal Zone philatelic material through the annual CZSG Mail Sale.
Members are eligible to vote in the elections for officers of the CZSG.
The CZSG holds frequent meetings of members at regional philatelic shows throughout the USA.