# The Railways and Other Guided Transport Systems (Safety) Regulations 2006, Paragraph 50


Where necessary to ensure valid results, the organisation must have procedures to ensure that its measuring equipment is—
(a) calibrated or verified at specified intervals, or prior to use, against international, national or industrial measurement standards; where no such standards exist, the basis used for calibration or verification must be recorded;
(b) adjusted or re-adjusted as necessary;
(c) identified to enable the calibration status to be determined;
(d) safeguarded from adjustments that would invalidate the measurement result;
(e) protected from damage and deterioration during handling, maintenance and storage.

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Source: https://www.legislation.gov.uk/uksi/2006/599/schedule/10/paragraph/50 (the official version)
Page: https://openlegislation.uk/railways-and-other-guided-transport-systems-safety-regulations-2006/schedule-10/paragraph-50
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.