In the case of a position which is representative of a unit defined
on a geographic, craft, shift, or similar basis, a labor organization
may by its constitution or bylaws limit eligibility for candidacy and
for holding office to members of the represented unit. For example, a
national or international labor organization may establish regional
vice-presidencies and require that each vice-president be a member of
his respective region. This kind of limitation would not be considered
reasonable, however, if applied to general officers such as the
president, vice-president, recording secretary, financial secretary, and
treasurer. If eligibility of delegates to a convention which will elect
general officers is limited to special categories of members, all such
categories within the organization must be represented.