(1) Notwithstanding this Chapter and regulations made under this Chapter, and subject to subsection (1A), State pension (contributory) shall be payable in accordance with this section in the case of a person who -

(a) has attained pensionable age, and

(b) immediately before attaining pensionable age is in receipt of a payment under Chapter 17 of this Part.

(1A) In the case of a person who, on the date of passing of the Social Welfare (Bereaved Partner's Pension and Miscellaneous Provisions) Act 2025, has attained pensionable age and is in receipt of a payment under Chapter 17 of this Part, the following shall apply on and after that date:

(a) invalidity pension shall cease to be payable, and

(b) State pension (contributory) shall be payable in accordance with this section.

(2) Only one pension shall be payable to or in respect of a person under this Chapter.

(3) Subject to subsections (4), (4A), (4B) and (6), State pension (contributory) payable under this section shall be payable in accordance with the age referenced rate for age 66 years specified in section 111.