Such charges shall be in writing and signed, and either shall be sworn to before a notary public, Board agent, or other person duly authorized by law to administer oaths and take acknowledgments or shall contain a declaration by the person signing it, under the penalty of perjury that its contents are true and correct (see 28 U.S.C. Sec. 1746). One original of such charge shall be filed. A party filing a charge by facsimile pursuant to Sec. 102.114(f) shall also file an original for the Agency's records, but failure to do so shall not affect the validity of the filing by facsimile, if otherwise proper. [67 FR 658, Jan. 7, 2002]