# The Welfare of Farmed Animals (England) Regulations 2007, Paragraph 5


To facilitate inspection, installation and depopulation of hens there must be a minimum aisle width of 90 cm between tiers of cages and a space of at least 35 cm must be allowed between the floor of the building and the bottom tier of cages.

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Source: https://www.legislation.gov.uk/ukdsi/2007/9780110773612/schedule/4/paragraph/5 (the official version)
Page: https://openlegislation.uk/draft-welfare-of-farmed-animals-england-regulations-2007/schedule-4/paragraph-5
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.