Subject to sub-paragraph (2) below, this Schedule shall have effect in relation to any case in which the event mentioned in section 33A(1)(b) occurs on or after the day on which this Act is passed.

Subject to sub-paragraph (3) below, this Schedule shall not apply for the purposes of claims, assessments and adjustments made on or after the day on which this Act is passed but before such day as the Treasury may by order appoint.

Sub-paragraph (2) above shall not prevent the making on or after the day appointed under that sub-paragraph of any claims, assessments or adjustments in respect of the application of this Schedule, in accordance with sub-paragraph (1) above, in relation to times before that day; and nothing in any provision relating to the period within which any claim or assessment must be made shall prevent any such claim, assessment or adjustment from being made by reference to this Schedule if it is made no more than twelve months after the day so appointed.