# The Work at Height Regulations 2005, Paragraph 7


No interlocking or extension ladder shall be used unless its sections are prevented from moving relative to each other while in use.

---
Source: https://www.legislation.gov.uk/uksi/2005/735/schedule/6/paragraph/7 (the official version)
Page: https://openlegislation.uk/work-at-height-regulations-2005/schedule-6/paragraph-7
Contains public sector information licensed under the Open Government Licence v3.0. Source: legislation.gov.uk, The National Archives.