definiens: which is agreed and understood to mean, subject to the Closing Conditions having been fulfilled or waived in accordance with Section 13.6, the later of ( A ) i f a determination is made pursuant to this Section 3.8 that an HSR / Antitrust Filing is not required to be made under any Antitrust Law for this Agreement, the date of s uch determination, or ( B ) if a determination is mad e pursuant to this Section 3.8 that an HSR / Antitrust Filing is required to be made under any Antitrust Law for th is Agreement, the Antitrust Clearance Date . As used he rein : ( 1 ) means the earliest date on which the Parties have actual knowledge tha t all applicable waiting periods under the HSR Act and any comparable waiting periods as required under any ot her Antitrust Law, in each case with respect to the transaction contemplated by this Agreement have exp ired or have been terminated ; and ( 2 ) means ( x ) a filing by RevMed and a filing by Sano fi with the FTC and the DOJ of a Notification and Report Form for Certain Mergers and Acquisitions ( a s that term is defined in the HSR Act ), together wi th all required documentary attachments thereto or ( y ) any comparable filing by RevMed or [COMPANY] required und er any other Antitrust Law, in each case ( ( x ) and ( y ) ) wit h respect to the transaction contemplated by this A greement