Posted By Swis Hi Stephen, I don’t think there’s any legislation in regards to having a flashing beacon on MEWPS. I think that will purely depend on your own risk assessment. There’re guidance document from HSE (SSHSCC/46/A)and "Selection and Management of WEPS". It mentions everything except warning lights. However, British Standard BS EN 280:2001 on MEWPs does have some sections stating the requirements of some sort of warning devices. Please see some of the extracts below; " 5.4.1.4 Moment sensing system The moment sensing system is a safety device and shall operate in the following way: When the permissible overturning moment (see 5.2.4.4) is reached a visual warning shall be given and further movements shall be prevented except those which reduce the overturning moment. 5.6.10 MEWPs of type 3 shall be equipped with an audible warning device (e.g. a horn) operated from the work platform. 7.2.14 A notice shall be fitted to a MEWP equipped with a captive chock in accordance with 5.4.5 warning persons not to enter the space beneath a raised work platform and extending structure during maintenance unless the chock is in place. 5.4.1.2 Load sensing system The load sensing system is a safety device and shall operate in the following way: a) It shall prevent any normal movement of the work platform from a stationary working position after the rated load is reached and before 120 % of the rated load is exceeded. b) When normal movement is prevented according to a) a warning consisting of a flashing red light at the preselected control position together with an acoustic signal audible at each control position shall be activated. The light shall continue to flash all the time condition a) prevails and the acoustic alarm shall sound for periods of at least 5 seconds repeated every minute." I don't think you will find any otherdocuments on MEWPs. Swis