Certification programs can promote sustainability by supporting businesses that meet certain criteria. The certification process involves an independent third party assessing an organization's compliance with sustainability criteria and awarding a certificate if requirements are met. Certification helps market sustainable businesses by serving as a label that signals credibility to consumers. It can also strengthen supply chains and influence behaviors by empowering organizations, informing consumers, and building trust. However, certification programs must find a balance between performance criteria, benefits, and levels of participation to be effective.