This document specifies the requirements for the draw gear and screw coupling for the end of rolling stock that is bound to couple with other rolling stock (freight wagons@ locomotives@ passenger vehicles@ etc.). This document covers the functionality@ construction@ interfaces and testing including pass/fail criteria for draw gear and screw coupling. The document describes three categories of classification of draw gear and screw coupling@ (1 MN@ 1@2 MN and 1@5 MN). Coupling systems between permanently coupled vehicle units are not in the scope of this document.