3.—(1) In these Regulations, “non-dependant” means any person, except someone to whom paragraph (2) applies, who normally resides with a claimant or with whom a claimant normally resides.
(2) This paragraph applies to—
(a)any member of the claimant's family;
(b)if the claimant is polygamously married, any partner of his and any child or young person who is a member of his household and for whom he or one of his partners is responsible;
(c)a child or young person who is living with the claimant but who is not a member of his household by virtue of regulation 11 (membership of the same household);
(d)subject to paragraph (3), any person who, with the claimant, is jointly and severally liable to pay council tax in respect of a dwelling for any day under sections 6, 7 or 75 of the 1992 Act (persons liable to pay council tax);
(e)subject to paragraph (3), any person who is liable to make payments on a commercial basis to the claimant or the claimant's partner in respect of the occupation of the dwelling;
(f)a person who lives with the claimant in order to care for him or a partner of his and who is engaged by a charitable or voluntary organisation which makes a charge to the claimant or his partner for the services provided by that person.
(3) Excepting persons to whom paragraph (2)(a) to (c) and (f) refer, a person to whom any of the following sub-paragraphs applies shall be a non-dependant—
(a)a person who resides with the person to whom he is liable to make payments in respect of the dwelling and either—
(i)that person is a close relative of his or his partner; or
(ii)the tenancy or other agreement between them is other than on a commercial basis;
(b)a person whose liability to make payments in respect of the dwelling appears to the relevant authority to have been created to take advantage of the council tax benefit scheme except someone who was, for any period within the eight weeks prior to the creation of the agreement giving rise to the liability to make such payments, otherwise liable to make payments of rent in respect of the same dwelling;
(c)a person who becomes jointly and severally liable with the claimant for council tax in respect of a dwelling and who was, at any time during the period of eight weeks prior to his becoming so liable, a non-dependant of one or more of the other residents in that dwelling who are so liable for the tax, unless the relevant authority is satisfied that the change giving rise to the new liability was not made to take advantage of the council tax benefit scheme.