This Technical Report provides a guide to International Standards applicable to mobile cranes — crawler cranes, railway cranes, wheel-mounted cranes and any variations thereof that retain the same fundamental characteristics — and a summary of related provisions. Special adaptations of the general types of machine covered, where applicable, also fall within its scope. NOTE According to the ISO Directives, Part 2, the verbal forms used to identify provisions in an International Standard are “shall” or “shall not”, used to indicate requirements strictly to be followed in order to conform to the document and from which no deviation is permitted, “should” or “should not” for recommendations, indicating that among several possibilities one is recommended as particularly suitable, without mentioning or excluding others, or that a certain course of action is preferred but not necessarily required, or that (in the negative form) a certain possibility or course of action is deprecated but not prohibited, and “may” or “need not”, used to indicate a course of action permissible within the limits of the document.