I know that there is a requirement to wear a harness in a cherry picker, but does this apply to a scissor type boom, although the hierarchy states that the measures should be collective. Advise please

The requirement to wear a harness on a scissor lift would be principally based on your risk assessment. You need to consider, amongst other things, the type of work being carried out and of course the location and conditions. In general terms, harnesses are generally not considered a requirement for scissor lifts, but this would depend on your particular situation. IPAF have issued guidance on this issue. http://www.ipaf.org/file.../documents/en/H10505.pdf

Is there such a universal requirement? I think not, unless there is a danger of collision.

Ron The HSE will always talk of a person being catapaulted out so you need to have a good arrangement to prevent this if not a harness Bob

Alan, as others have said all depends on your RA. In an ideal world there should be no risk of collision as you should have barriers around the machine, others should be kept well away etc. The ground you are operating on should be stable and level, no risk of turning over. The exact kind of conditions you would find on every construction site! As a general rule, if we are traversing machines outside of the building we enforce the wearing of a harness, however it is scary how many times I see people wearing fall arrest lanyards instead of fall restraint, worse still when you stop them and speak to them to find they were unaware of the difference. Renewed my IPAF qualification just before Christmas and not once did the instructor mention the difference between the two types of Lanyard. I asked him at the very end of the day to explain their different uses, which with a bit of prompting he managed! Hastened to add he was a very inexperienced Trainer. Regards Clive