225.3. The rules contained in this Act apply to any claim concerning an amount granted before 1 January 2003 under Title I or section 16 of this Act, or section 25 of the Act respecting income security (chapter S-3.1.1) if it is established on or after that date in respect of an amount granted to a person, association, partnership or body, or in respect of an amount granted on condition of repayment.