DEFRA held a webinar on Fees as Drivers of Packaging Choices on 13 December. The slides from the webinar can be found here. There is the potential to involve a huge amount of work for producers and DEFRA are considering questions around how this would work in practice.
They acknowledge they need support in order to make it work effectively. If members are in a position to support DEFRA, you can directly contact CPRenquiries@defra.gov.uk