4(1)An authority may treat as a sole tenant for the purposes of this Schedule one of two or more joint tenants, and in that case, subject to sub-paragraph (2) below, every joint tenant who resides in the tenant's house and is not so treated shall be treated as a non-dependant for those purposes.
(2)Neither the spouse nor a dependent child of a tenant shall be treated as a non-dependant by virtue of sub-paragraph (1) above.