(1)P Part 6 of ENV 1993 provides principles and application rules for the structural design of crane runway beams and other crane supporting structures made of steel. (2)P The provisions given in Part 6 supplement, modify or supersede the equivalent provisions given in ENV 1993-1-1, to which reference also needs to be made. (3)P It covers overhead crane runways inside buildings and outdoor overhead crane runways. (4)P Crane runways for stacker cranes in high-bay warehouses are not covered in this document, even though some of its provisions might be adopted for such runways.