# The Veterinary Medicines Regulations 2005, Paragraph 16: Sampling and analysis


(1) If any enforcement action is taken under this Schedule based on a sample, that sample must have been taken and analysed in accordance with Council Directive 76/371/EEC (establishing Community methods of sampling for the official control of feedingstuffs).
(2) Unless otherwise specified in the marketing authorisation, it is a defence if the active substance in the sample is within the following tolerances—
(a) not exceeding 50 mg/kg of active ingredient: +/− 50%;
(b) exceeding 50 mg/kg but not exceeding 500 mg/kg: +/− 40%;
(c) exceeding 500 mg/kg but not exceeding 5g/kg: +/− 30%;
(d) exceeding 5g/kg but not exceeding 50g/kg: +/− 20%;
(e) exceeding 50g/kg: +/− 10%.

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Source: https://www.legislation.gov.uk/uksi/2005/2745/schedule/5/paragraph/16 (the official version)
Page: https://openlegislation.uk/veterinary-medicines-regulations-2005/schedule-5/paragraph-16
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.