http://www.legislation.gov.uk/uksi/2005/735/schedule/6/paragraph/8/madeThe Work at Height Regulations 2005Health and safety inspectionsHealth and safety at workHealth and safety requirementsSafetyHealth and safety risk assessmentKing's Printer of Acts of Parliament2016-09-29HEALTH AND SAFETYSCHEDULE 6REQUIREMENTS FOR LADDERS8A mobile ladder shall be prevented from moving before it is stepped on.