The major contents of SL 282-2003 Design Specification for Concrete Arch Dams revised in this version include.Selection of dam shape,type of flood release.structures and layout of arch dam.Hydraulic design for flood release,energy dissipation and cour prevention;Loads on arch dams and loading combinations;Content and method for stress analysis of arch dams and stress control criteria;Sliding stability and deformation stability of abutments and corresponding safety criteriaetc.