(1) Section 172(1) of the Principal Act is amended -

(a) by inserting the following definition:

"'relevant age’ means -

(a) 16 years where a payment under Chapter 8A of Part 3 is being made in respect of a child, and

(b) in any other case -

(i) 12 years in respect of any claim for one-parent family payment relating to any day during the period beginning on 3 May 2012 and expiring on 2 January 2013,

(ii) 10 years in respect of any claim for one-parent family payment relating to any day during the period beginning on 3 January 2013 and expiring on 1 January 2014, and

(iii) 7 years in respect of any claim for one-parent family payment relating to any day occurring on or after 2 January 2014;",

and

(b) in the definition of "relevant child" (inserted by section 9 of the Act of 2011), by substituting the following paragraph for paragraph (c):

"(c) has not attained the relevant age;".

(2) This section comes into operation on 3 May 2012.