7.4.3  Opportunity for H earing or Appeal   Notwithstanding Articles 7.4.1 and 7.4.2,  a Provisional Suspension  may not be imposed unless the Athlete or other Person is given: (a) an opportunity for a Provisional Hearing,  either before or on a timely basis after impos ition of the Provisional Suspension; or (b) an opportunity for an expedited hearing in accordance with Article 8 on a timely basis after imposition of the Provisional Suspension.