172.Section 46 applies in relation to adults who are subject to immigration control within the meaning of section 115 of the Immigration and Asylum Act 1999. A local authority may not meet the care and support needs of such an adult which have arisen solely because the adult is destitute or because of the physical effects, anticipated or actual, of being destitute. It replaces existing exclusions set out in, for example, sections 21(1A) and (1B) of the National Assistance Act 1948 and section 45(4A) Health Services and Public Health Act 1968.