15.— Section 113A (inserted by the Act of 2006) of the Principal Act is amended—

(a) in subsection (3) by substituting “Subject to subsections (4) and (6),” for “Subject to subsection (4),”, and

(b) by inserting the following after subsection (5):

“(6) Where a person, who is in receipt of invalidity pension under Chapter 17 of this Part at a reduced rate by virtue of a reciprocal arrangement under section 287, attains pensionable age and is not entitled to a pension under section 108 by virtue of his or her contributions under this Act, the weekly rate of pension payable shall be the greater of—

(a) the amount of invalidity pension which would be payable but for this section, calculated in accordance with the relevant reciprocal arrangement, or

(b) the rate of State pension (contributory) payable in accordance with a relevant reciprocal arrangement.”.