"Green Tick Certified Sustainable" is the 'parent' certification brand in the registered Green Tick Certification System.
Products and services that are certified SUSTAINABLE have passed our independent, life-cycle based sustainability audit against the Green Tick Sustainability Certification Standards. Audits are done every three years, and the audit reports are published here free, on-line, in the Green Tick Register.
This way, producers can clearly show markets that they have the genuine Green Tick, and consumers can quickly find out what companies, products, and services have been independently certified Green Tick Sustainable.
See an example here.