For the purposes of this Act, each parent of a qualifying child is responsible for maintaining him.

For the purposes of this Act, F1a non-resident parent shall be taken to have met his responsibility to maintain any qualifying child of his by making periodical payments of maintenance with respect to the child of such amount, and at such intervals, as may be determined in accordance with the provisions of this Act.

Where a F2maintenance calculation made under this Act requires the making of periodical payments, it shall be the duty of the F1non-resident parent with respect to whom the F3calculation was made to make those payments.