5 CFR § 2429.27 - Service; statement of service.
(a) Except as provided in § 2423.10(c) and (d), any party filing a document as provided in this subchapter is responsible for serving a copy upon all counsel of record or other designated representative(s) of parties, upon parties not so represented, and upon any interested person who has been granted permission by the Authority pursuant to § 2429.9 to present written and/or oral argument as amicus curiae. Service upon such counsel or representative shall constitute service upon the party, but a copy also shall be transmitted to the party.
(b) If you are serving a document under paragraph (a) of this section, then you must use one of the following methods of service:
(1) Certified mail;
(2) First-class mail;
(3) Commercial delivery;
(4) In-person delivery;
(5) Facsimile (“fax”) service, but only for the types of documents listed in § 2429.24(g) and only where fax equipment is available; or
(6) Electronic mail (“email”), but only when the receiving party has agreed to be served by email.
(c) If you serve a document under this section, then you must file, with the appropriate FLRA office, a statement indicating that the party has served that document (a “statement of service”). If you are filing documents electronically using the FLRA's eFiling system, then you must certify, in the FLRA's eFiling system and at the time of filing, that you have served copies of the filing and any supporting documents on the appropriate individual(s) specified in paragraph (a) of this section. Regardless of how you file a statement of service with the FLRA, you must ensure that your statement of service includes the names of the parties and persons that you served, their addresses, the date on which you served them, the nature of the document(s) that you served, and the manner in which you served the parties or persons that you served. You must also sign and date the statement of service, unless you are using the FLRA's eFiling system.
(d) Date of service. For any documents that you serve under this section, the date of service depends on the manner in which you serve the documents. Specifically, the date of service shall be the date on which you have: deposited the served documents in the U.S. mail; delivered them in person; deposited them with a commercial-delivery service that will provide a record showing the date on which the document was tendered to the delivery service; transmitted them by fax (where allowed under paragraph (b)(5) of this section); or transmitted them by email (where allowed under paragraph (b)(6) of this section).