www.cleanhighways.co.uk report: “In an email to Sarah Crawford Nick Harris, Highways England’s Operation Director has misrepresented HE’s statutory duty under the Environmental Protection Act 1990. He wrote:
Under the terms of the Environmental Protection Act 1990, we are responsible for the management and removal of litter on the motorway network and some trunk roads.
To ensure, so far as is practicable, that their highways (this includes the verges) are kept clear of litter and refuse.
A duty to remove litter would be satisfied by an annual litter pick. This would not however ensure the the land was kept clear of litter.