(2) Whether or not a state of emergency exists, in the event that at any time there is no holder of a Waste Management Facility Licence or Waste Haulage Licence, as the case may be, available for the management or transportation, as the case may be, of any solid waste needing such management or transportation, the Planning Authority shall be responsible for ensuring the management or transportation, as the case may be, of such waste, and any person acting under the authority of the Planning Authority shall while so acting, be authorised to manage or transport, as the case may be, any solid waste.