Zoo accreditation schemes provide meaningful welfare standards above minimum legal requirements, but only a minority of facilities globally meet these standards.
Zoo accreditation provides assurance that member institutions meet minimum welfare, conservation, and professional standards. EAZA, AZA, and BIAZA membership requires ongoing welfare assessment and improvement, professional staff training, and genuine conservation programme participation. The vast majority of facilities worldwide are not accredited and range from adequate to deeply problematic. Visitor demand for accredited facilities drives the market for higher welfare; choosing carefully where to spend zoo admission fees has direct welfare impact.