This playbook is a practical guide for policymakers who wish to embed behavioural science insights into policymaking to help citizens live more sustainably. 

It is a template with general guiding principles to support policymakers when partnering with businesses to scope and implement behaviour change initiatives that discourage the consumption of single-use coffee1 cups, in favour of reusable alternatives. Our ambition is that policymakers across the globe apply these guiding principles to other SUP materials and behaviours which are appropriate to their country’s situation.