A. In lieu of mailing a copy of process or other papers by certified mail, return receipt requested and delivery restricted to the addressee as required or allowed by this title, a party or attorney may send the same by commercial courier service, overnight delivery service, or other reliable personal delivery service to the party addressed, in each instance evidenced by a written or electronic receipt signed by the addressee showing to whom delivered, date of delivery, address where delivered, and person or entity effecting delivery. Acceptance of service by a person who is fifteen (15) years of age or older who resides at the defendant's dwelling house or usual place of abode shall constitute acceptance by the party addressed. A return receipt signed at a dwelling house or usual place of abode shall be presumed to have been signed by a person who is fifteen (15) years of age or older who resides at that dwelling house or abode.

B. In lieu of mailing a copy of papers by ordinary mail as required or allowed by this title, a party or attorney may send same by commercial courier service, overnight delivery service, or other reliable personal delivery service to the party addressed.

C. When one of the methods described in this section is utilized, all deadlines based upon service shall be calculated in the same manner as if the service had been by mail.

D. This section shall not apply to the filing of any document with a court clerk. The filing of documents with a court clerk remains governed by the Oklahoma Statutes and court rules.

E. In case of an entity described in division (3) of subparagraph c of paragraph 1 of subsection C of Section 2004 of this title, acceptance by any officer or by any employee of the registered office or principal place of business who is authorized to or who regularly receives certified mail shall constitute acceptance by the party addressed. A return receipt signed at such registered office or principal place of business shall be presumed to have been signed by an employee authorized to receive certified mail.