15.—(1) Authorising enforcing authorities to serve on holders of permits
(a)notices requiring them to take remedial action in respect of contraventions, actual or potential, of conditions to which their permits are subject;
(b)notices requiring them to provide such financial security as the enforcing authorities serving the notices consider appropriate pending the taking of remedial action in respect of any such contraventions;
(c)notices requiring them to take steps to remove imminent risks of serious environmental pollution (whether or not arising from any such contraventions).
(2) Providing for the enforcement of such notices by proceedings in the High Court.