The Fresno County Zoo Authority is the public agency responsible for the administration of Measure Z, the unique transactions and use tax (sales tax) which is collected throughout Fresno County for the support of the Chaffee Zoo in the City of Fresno. The Zoo Authority is governed by a seven-member board. This board consists of six qualified electors (Fresno County voters) who are appointed by the Fresno County Board of Supervisors, plus the Mayor of Fresno.
A different organization, the private non-profit entity, Fresno’s Chaffee Zoo Corporation, that took over the Chaffee Zoo from the City of Fresno on January 1, 2006, is responsible for the Zoo. The name of the Zoo was changed to Fresno Chaffee Zoo and in May 2006, Lewis Greene became the new CEO/Director. The Zoo Society was disbanded effective June 1, 2006. In May 2009, Scott Barton became the new CEO/Director of Fresno Chaffee Zoo.