# The Crop Residues (Restrictions on Burning) Regulations 1991, Paragraph 2


No crop residue may be burned if the area to be burned extends, in the case of cereal straw or cereal stubble, to more than 10 hectares, and in any other case to more than 20 hectares.

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Source: https://www.legislation.gov.uk/uksi/1991/1399/schedule/2/paragraph/2 (the official version)
Page: https://openlegislation.uk/crop-residues-restrictions-on-burning-regulations-1991/schedule-2/paragraph-2
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.