straight forward health and safty advice 
Eye bolts have a variety of uses, one of the most common being as an anchor point for a safety device When working off eyebolts, for window cleaning or maintenance work, or when using them to secure a ladder, make sure that: Everyone knows the emergency arrangements and what to do and if you or a colleague falls. The weather conditions are suitable to allow the work to be done safely. Re- assess the situation regularly, particularly if the weather is changeable. Each eyebolt has a tag around the neck identifying the date it was inspected and tested or that there is test certificate for the eyebolts fitted to the building. Do not undertake any work unless there is a tag or a valid  current certificate. You physically check the security of every bolt, each time - before you use it, by tugging it and twisting it. If there is any doubt about its security, do not use it and leave that area of work. Make a note of defective eyebolts and tell the building owner about it. You use a full body harness and webbing lanyards (rope lanyards tend to untwist in use) that have a maximum length of 1.8 metres (6 feet) and are fitted with a shock absorbing pack. Where practicable use a shorter lanyard with absorber pack, as when the absorber is activated and opens, the overall length of the fall will be extended. For window cleaning work, the eyebolts are normally installed above shoulder height but within reach. Where the eyebolts are fitted at low level, use an inertia reel for restraint, rather than a lanyard.
Work precautions