# Town and Country Planning Act 1990, Paragraph 12


(1) In this Schedule “at a material date” means at either—
(a) 1st July 1948; or
(b) the date by reference to which this Schedule falls to be applied in the particular case in question.
(2) Sub-paragraph (1)(b) shall not apply in relation to any buildings, works or use of land in respect of which, whether before or after the date mentioned in that sub-paragraph, an enforcement notice served before that date has become or becomes effective.

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Source: https://www.legislation.gov.uk/ukpga/1990/8/schedule/3/paragraph/12 (the official version)
Page: https://openlegislation.uk/town-and-country-planning-act-1990/schedule-3/paragraph-12
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.