(149)As a specific packaging waste generation prevention measure, Member States should actively encourage re-use and refill solutions. They should support the establishment of re-use and refill systems and monitor their functioning and compliance with hygiene standards. Member States are encouraged to also take other measures, such as setting up deposit and return systems covering reusable packaging formats, using economic incentives or establishing requirements for final distributors to make a certain percentage of other products available than those covered by re-use targets and refill obligations in reusable packaging or through refill provided that such requirements will not result in fragmentation of single market and creation of trade barriers.