Third-party welfare audits are a cornerstone of certification schemes, but their effectiveness depends heavily on audit frequency, inspector training, and the validity of the welfare measures assessed.
Welfare audits are only as effective as their design and implementation. Checklist-based audits measuring inputs such as space allowances and enrichment provision tell us less about animal welfare than outcome-based measures assessing the actual behavioral and physical state of animals. The transition to outcome-based welfare assessment represents a significant improvement in audit validity.