Posted By TBC I don't believe it is available electronically, but it's all to do with the safe use of cranes in any industry. It covers everything from use, safety checks, maintenance through to training of competent people to operate (drivers, banksman etc.) as well as qualified engineers to maintain the equipment. You can probably get so much info from various web sites, but I believe you will have to order the book elsewhere. These are just some examples of the parts to it: Mobile Cranes (BS7121 Part 1 & 3), Lorry Loaders (BS7121 Part 1 & 4), Tower Cranes (BS7121 Part 1 & 5) and Overhead Travelling Cranes (BS7121 Part 1). You can order the book from here: http://www.bsi-global.co...e_design/bs7121-2.xalter Good Luck