1175.28.5. For the purposes of the second paragraph of sections 1175.28.6, 1175.28.9 and 1175.28.15 and the third paragraph of section 1175.28.12, an amount that must be determined with reference to the revocation or replacement of a favourable advance ruling or of a certificate, a qualification certificate or another similar document must be determined on the assumption that(a) the favourable advance ruling or the certificate, qualification certificate or other similar document that has been revoked was never given or issued; and
(b) the favourable advance ruling or the certificate, qualification certificate or other similar document that has been replaced was never given or issued, and that the favourable advance ruling or the certificate, qualification certificate or other similar document that replaced it was given or issued at the time the document it replaces was given or issued.
However, in the case of the revocation or replacement of a certificate, a qualification certificate or another similar document that, as specified in the revocation or replacement notice, concerns only a part of the period to which the document related before its revocation or replacement, the certificate, qualification certificate or other similar document must not be considered, for the other part of that period, to have never been issued.