— to establish a working terminology for crossings with moveable parts, which means crossings with moveable parts to close the gap of the running edge, and their constituent parts, and identify the main types;

— to list the minimum informative requirements for the manufacture of crossings with moveable parts and/or their constituent parts;

— to formulate codes of practice for inspection and tolerances for crossings with moveable parts and/or their constituent parts;

— to establish the limits and extent of supply;

— to list the method by which crossings with moveable parts and their constructional parts should be identified and traced;

— to list the different and varying ways by which crossings with moveable parts can be described, using the following parameters: