http://www.legislation.gov.uk/ukpga/1991/34/schedule/13/paragraph/17/enactedPlanning and Compensation Act 1991Planning (town and country)Listed buildingsPlanning applicationsHistoric buildingsZoningurn:isbn:0105434914King's Printer of Acts of Parliament2021-08-02SCHEDULESSCHEDULE 13Planning in Scotland: Minor and Consequential AmendmentsThe 1972 Act17Section 51 is omitted.