(a)By the Commission.(1) Service of complaints, initial decisions, final orders and other processes of the Commission under 15 U.S.C. 45 may be effected as follows:(i)By registered or certified mail. A copy of the document shall be addressed to the person, partnership, corporation or unincorporated association to be served at his, her or its residence or principal office or place of business, registered or certified, and mailed; service under this provision is complete upon delivery of the document by the Post Office; or(ii)By delivery to an individual. A copy thereof may be delivered to the person to be served, or to a member of the partnership to be served, or to the president, secretary, or other executive officer or a director of the corporation or unincorporated association to be served; service under this provision is complete upon delivery as specified herein; or(iii)By delivery to an address. A copy thereof may be left at the principal office or place of business of the person, partnership, corporation, or unincorporated association, or it may be left at the residence of the person or of a member of the partnership or of an executive officer or director of the corporation, or unincorporated association to be served; service under this provision is complete upon delivery as specified herein.(2) All documents served by the Commission or Administrative Law Judge in adjudicative proceedings under part 3 of this chapter, other than documents governed by paragraph (a)(1) of this section, may be served by personal delivery (including delivery by courier), by electronic delivery in accordance with § 4.4(e) , or by first-class mail. Unless otherwise specified in § 4.4(e) , documents shall be deemed served on the day of personal or electronic delivery or the day of mailing.(3) All other orders and notices, including subpoenas, orders requiring access, orders to file annual and special reports, and notices of default, may be served by any method reasonably certain to inform the affected person, partnership, corporation or unincorporated association, including any method specified in paragraph (a)(1) of this section, except that civil investigative demands may only be served in the manner provided by section 20(c)(8) of the FTC Act (in the case of service on a partnership, corporation, association, or other legal entity) or section 20(c)(9) of the FTC Act (in the case of a natural person). Service under this provision is complete upon delivery by the Post Office or upon personal delivery (including delivery by courier).(b)By parties or third parties in adjudicative proceedings under part 3 of this chapter.(1) Service of documents by complaint counsel, respondents, or third parties in adjudicative proceedings under part 3 shall be by delivering copies using the following methods.(i)Upon complaint counsel. A copy may be served by personal delivery (including delivery by courier), by electronic delivery in accordance with § 4.4(e) , or by first-class mail to the lead complaint counsel, with a copy to the Administrative Law Judge.(ii)Upon a party other than complaint counsel or upon a third party. A copy may be served by personal delivery (including delivery by courier), by electronic delivery in accordance with § 4.4(e) , or by first-class mail, with a copy to the Administrative Law Judge. If the party is an individual or partnership, delivery shall be to such individual or a member of the partnership; if a corporation or unincorporated association, to an officer or agent authorized to accept service of process therefor. Personal delivery includes handing the document to be served to the individual, partner, officer, or agent; leaving it at his or her office with a person in charge thereof; or, if there is no one in charge or if the office is closed or if the party has no office, leaving it at his or her dwelling house or usual place of abode with some person of suitable age and discretion then residing therein.(2) Unless otherwise specified in § 4.4(e) , documents served in adjudicative proceedings under part 3 shall be deemed served on the day of personal delivery (including delivery by courier), the day of electronic delivery, or the day of mailing.(c)Service upon counsel. When counsel has appeared in a proceeding on behalf of a party, service upon such counsel of any document, other than a complaint, shall be deemed service upon the party. However, service of those documents specified in paragraph (a)(1) of this section shall be in accordance with paragraphs (a)(1)(i), (ii), and (iii) of this section.(d)Proof of service. In an adjudicative proceeding under part 3, documents presented for filing shall contain proof of service in the form of a statement of the date and manner of service and of the names of the persons served, certified by the person who made service. Proof of service must appear on or be affixed to the documents filed.(e)Service by electronic delivery in an adjudicative proceeding under part 3 of this chapter -(1)Service through the electronic filing system. A party may elect, for documents labeled "Public" pursuant to § 4.2(b) , to be served via the electronic filing system provided by the Office of the Secretary. The electronic filing system cannot be used to serve third parties. For parties that have elected to be served via the electronic filing system:(i) Service of documents labeled "Public" pursuant to § 4.2(b) may be effected through the electronic filing system;(ii) Each such party thereby agrees that, for any document served through the electronic filing system, transmission of the notice of electronic filing provided by the electronic filing system shall satisfy the service obligations of the serving party; and(iii) A document served via the electronic filing system shall be deemed served on the date the notice of electronic filing is transmitted, unless the serving party learns that the notice of electronic filing did not reach the person to be served.(2)Service by other methods of electronic delivery.(i) In the following circumstances, service by other methods of electronic delivery (including service by email) may be effected as the Administrative Law Judge and the Secretary may direct:(A) The document to be served is labeled "In Camera" or "Confidential" pursuant to § 4.2(b) ;(B) The party to be served has not elected to be served via the electronic filing system;(C) The document is to be served upon a third party; or(D) Service under paragraph (e)(1) of this section is unavailable for technical reasons.(ii) If documents labeled "In Camera" or "Confidential" are being served under this paragraph (e)(2), the documents must be encrypted prior to transit or must be transferred through a secure file transfer protocol. Service of a document under this paragraph (e)(2) shall be complete upon transmission by the serving party, unless the serving party learns that the document did not reach the person to be served.(f)Service of process upon the Commission. Documents served upon the Commission may be served by personal delivery (including delivery by courier) or by first-class mail to the Office of the Secretary of the Commission. 80 FR 25942 , May 6, 2015, as amended at 80 FR 60797 , Oct. 8, 2015