# The Measuring Equipment (Measures of Length) Regulations 1986, Regulation 12

Extent: E+W+S

Where a measure of length is marked with a tractive force, it shall be constructed so that a change of 10 per cent. above or below that force does not cause a variation in length exceeding the prescribed limit of error.

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Source: https://www.legislation.gov.uk/uksi/1986/1682/regulation/12 (the official version)
Page: https://openlegislation.uk/measuring-equipment-measures-of-length-regulations-1986/regulation-12
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.