In 2015 ELFA was invited by the International Institute for the Unification of Private Law (UNIDROIT) to join the Mining, Agricultural, and Construction Equipment Work Group (the MAC Working Group).  The purpose of this group is to work on the Fourth Protocol to the Cape Town Convention on International Interest in mobile equipment relating to mining, agriculture and construction equipment (the MAC Protocol). Over the course of the last three years; members of ELFA’s International Law Subcommittee have actively participated in the drafting and adoption process of the MAC Protocol.