# The Diseases of Swine Regulations 2014, Regulation 27F: Meaning of “controlled zone tracing period”


In this Part “controlled zone tracing period”, in relation to premises in an area which is subsequently declared to be a controlled zone, means the period—
(a) beginning with the day that is 15 days before the estimated earliest date of infection; and
(b) ending with the day on which the controlled zone was declared.

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Source: https://www.legislation.gov.uk/uksi/2014/1894/regulation/27F (the official version)
Page: https://openlegislation.uk/diseases-of-swine-regulations-2014/regulation-27F
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.