3.—(1) A decision (other than a decision of a social security appeal tribunal or a Commissioner) made before 29th November 1999–
(a)on a claim for; or
(b)under or by virtue of Part II of the Administration Act in relation to,
a relevant benefit shall be treated as a decision of the Secretary of State under paragraph (a) or, as the case may be, paragraph (c) of section 8(1).
(2) Where, before 29th November 1999, any person was required to give notice to the claimant of a decision referred to in sub-paragraph (1) above, and such notice was not given before that date, the Secretary of State shall give notice to the claimant of that decision.