Safeguarded wharves are those wharves in London which have been given special status by the Mayor of London and the Port of London Authority (PLA) which ensures they are retained as working wharves and are protected from redevelopment into non-port use. Nineteen operational and six non-operational or road served wharves are viable or capable of being made viable for cargo-handling and should be safeguarded by direction of the Deputy Prime Minister. Nineteen of the proposed sites are not viable for cargo-handling.