(1) Each provision of the Principal Act and each instrument mentioned in column (1) of Schedule 1 is amended in the manner specified in column (2) of Schedule 1 opposite the mention of that provision or instrument, as the case may be, in column (1).

(2) Any reference in any Act, or in any instrument made under any Act, passed or made before the commencement of this section to "family income supplement" shall be construed as a reference to "working family payment".

(3) This section comes into operation on 1 January 2018.