Australian Capital Territory Consolidated ActsA person may enter into a civil partnership only if—
(a) the person is not married or in a civil partnership; and
(b) the person does not have any of the following relationships (a prohibited relationship ) with the person's proposed civil partner:
(i) lineal ancestor;
(ii) lineal descendent;
(iii) sister;
(iv) half-sister;
(v) brother;
(vi) half-brother; and
(c) the person or the person's proposed civil partner, or both of them, live in the ACT.