The Recordkeeper, as soon as practicable after the end of each calendar quarter of the year, or more frequently, as the Plan Administrator may determine, shall mail or distribute to each Participant (including those who have incurred a Termination of Service) a statement setting forth the Account of such Participant as of the end of such period. Such statement shall be deemed to have been accepted as correct unless written notice to the contrary is received by the Plan Administrator and/or Recordkeeper within sixty (60) days after the mailing or distribution of such statement to the Participant.
Okla. Admin. Code § 590:35-5-2