definiens: shall mean : ( a ) Purchasers or the Parties shall have received from theCommissioner an advance ruling certificate issued under section 102(1 ) of the Canadian Competition Act in respect of thetransactions contemplated by this Agreement and such advance ruling certificate has not been modified or withdrawn ; or(b ) the applicable waiting period under section 123(1 ) of the Canadian Competition Act shall have expired or shall have beenterminated early under section 123(2 ) of the Canadian Competition Act, or the obligation to submit a notification underPart IX of the Canadian Competition Act shall have been waived pursuant to section 113(c ) of the Canadian Competition Act, and Purchasers shall have received a letter from the Commissioner confirming that the Commissioner does not, at that time, intend to make an application under Section 92 of the Canadian Competition Act in respect of the transactions contemplatedby this Agreement, and such letter has not been modified or withdrawn