# The Railways and Other Guided Transport Systems (Safety) Regulations 2006, Paragraph 35


When the competence management process is applied to the maintenance development function, at least the following activities affecting safety must be taken into account—
(a) assessment of the significance of changes for the maintenance file and proposed substitutions in the course of maintenance;
(b) engineering disciplines required for managing the establishment and the changes of maintenance file and the development, assessment, validation and approval of substitutions in the course of maintenance;
(c) joining techniques, including welding and bonding, brake systems, wheel sets and draw gear, non-destructive testing techniques and maintenance activities on specific components of freight wagons for the transport of dangerous goods such as tanks and valves.

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Source: https://www.legislation.gov.uk/uksi/2006/599/schedule/10/paragraph/35 (the official version)
Page: https://openlegislation.uk/railways-and-other-guided-transport-systems-safety-regulations-2006/schedule-10/paragraph-35
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.