# The Welfare of Pigs Regulations 1991, Regulation 4: Transitional


A person shall not be guilty of an offence under regulation 2 or 3 by virtue of the use on any land before 1st January 1999 of any tether, stall or pen which was in use on that land before 1st October 1991.

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Source: https://www.legislation.gov.uk/uksi/1991/1477/regulation/4 (the official version)
Page: https://openlegislation.uk/welfare-of-pigs-regulations-1991/regulation-4
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.