# The Measuring Instruments Regulations 2016, Paragraph 10


No person shall use for trade a measuring system unless—
(a) it is compliant with the essential requirements other than the provisions relating to maximum permissible errors;
(b) it is erected an installed so as to facilitate testing;
(c) it operates within the maximum permissible errors in paragraph 11; and
(d) the requirements of paragraphs 12 and 13 are complied with.

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Source: https://www.legislation.gov.uk/uksi/2016/1153/schedule/6/paragraph/10 (the official version)
Page: https://openlegislation.uk/measuring-instruments-regulations-2016/schedule-6/paragraph-10
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.