General Safety Requirements for Working at Heights Aluminium Mobile Scaffolds Method of Use Safety Hazards and Risk Assessment General Safety Requirements for Working at HeightsGeneral-Safety-Requirements-for-Working-at-HeightsDownload By Md Abu Zaed Khan Hello, this is Engr. Zaed Khan Planning Engineer, Associate member of Society of Engineers UAE. Expert in construction project planning, FIDIC red book, computation of extension of time claim, Contract agreement and contractual letters. View all of Md Abu Zaed Khan's posts.