Include sustainability criteria in contracts
Think about including sustainability clauses in your contracts, requiring suppliers to support your plastic waste reduction programme.
Keep in mind that it is important to inform them about your plastic waste reduction programme as well as how they can support it.
Evaluation of suppliers
In general, you can also evaluate your suppliers by setting up specific (realistic) targets and key performance indicators and reward the best performing suppliers as your preferred supplier.
Also support underperforming suppliers with improvements by working together and sharing information.