Every direction, revocation or notice authorized or required hereunder will be deemed delivered to the Employers or the Committee: (a) on the date it is sent via electronic transmission to the Secretary of the Committee (with a copy to the Company’s General Counsel), provided that receipt of the electronic transmission is acknowledged by personal action of the Secretary of the Committee or the Company’s General Counsel within three business days, (b) the date it is personally delivered to the Company’s executive offices at Buffalo, New York, or (c) three business days after it is sent by registered or certified mail, addressed to the Secretary of the Committee (with a copy to the Company’s General Counsel) at the offices indicated above; and will be deemed delivered to a Participant or Beneficiary: (a) on the date it is sent via electronic transmission to the Participant or Beneficiary, provided that receipt of the electronic transmission is acknowledged by personal action of the Participant or Beneficiary within three business days, (b) the date it is personally delivered to the Participant or Beneficiary, or (c) three business days after it is sent by registered or certified mail, addressed to the Participant or Beneficiary at the last address shown for him on the records of the Employers. Any notice required hereunder may be waived by the person entitled thereto.