# Investigatory Powers Act 2016, Section 143: Duration of warrants


(1) A bulk interception warrant (unless already cancelled) ceases to have effect at the end of the period of 6 months beginning with—
(a) the day on which the warrant was issued, or
(b) in the case of a warrant that has been renewed, the day after the day at the end of which the warrant would have ceased to have effect if it had not been renewed.
(2) For provision about the renewal of warrants, see section 144.

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Source: https://www.legislation.gov.uk/ukpga/2016/25/section/143 (the official version)
Page: https://openlegislation.uk/investigatory-powers-act-2016/section-143
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.