Persons treated as residing together
34. For the purposes of Part 9 of the Contributions and Benefits Act and Part 9 of the Contributions and Benefits (NI) Act, the prescribed circumstances in which persons are treated as residing together are circumstances where—
(a)spouses or two persons who are parents of a child but not husband and wife are absent from one another where such absence is not likely to be permanent; and
(b)spouses are absent from one another by reason only of the fact that either of them is, or they both are, undergoing medical or other treatment as an in-patient in a hospital or similar institution whether such absence is temporary or not.