*       The object of this Part is to define the expression network unit .

*       There are 4 types of network unit:

               (a)     a single line link connecting distinct places in Australia, where the line link meets certain minimum distance requirements;

               (b)     multiple line links connecting distinct places in Australia, where the line links meet certain minimum distance requirements;

               (c)     a designated radiocommunications facility;

               (d)     a facility specified in a Ministerial determination.