47 CFR § 73.1940 - Legally qualified candidates for public office.
(a) A legally qualified candidate for public office is any person who:
(1) Has publicly announced his or her intention to run for nomination or office;
(2) Is qualified under the applicable local, State or Federal law to hold the office for which he or she is a candidate; and
(3) Has met the qualifications set forth in either paragraph (b), (c), (d), or (e) of this section.
(b) A person seeking election to any public office including that of President or Vice President of the United States, or nomination for any public office except that of President or Vice President, by means of a primary, general or special election, shall be considered a legally qualified candidate if, in addition to meeting the criteria set forth in paragraph (a) of this section, that person:
(1) Has qualified for a place on the ballot; or
(2) Has publicly committed himself or herself to seeking election by the write-in method and is eligible under applicable law to be voted for by sticker, by writing in his or her name on the ballot or by other method, and makes a substantial showing that he or she is a bona fide candidate for nomination or office.
(c) A person seeking election to the office of President or Vice President of the United States shall, for the purposes of the Communications Act and the rules in 47 CFR chapter I, be considered legally qualified candidates only in those States or territories (or the District of Columbia) in which they have met the requirements set forth in paragraphs (a) and (b) of this section: Except, that any such person who has met the requirements set forth in paragraphs (a) and (b) of this section in at least 10 States (or 9 and the District of Columbia) shall be considered a legally qualified candidate for election in all States, territories, and the District of Columbia for the purposes of this Act.
(d) A person seeking nomination to any public office, except that of President or Vice President of the United States, by means of a convention, caucus or similar procedure, shall be considered a legally qualified candidate if, in addition to meeting the requirements set forth in paragraph (a) of this section, that person makes a substantial showing that he or she is a bona fide candidate for such nomination: Except, that no person shall be considered a legally qualified candidate for nomination by the means set forth in this paragraph prior to 90 days before the beginning of the convention, caucus or similar procedure in which he or she seeks nomination.
(e) A person seeking nomination for the office of President or Vice President of the United States shall, for the purposes of the Communications Act and the rules thereunder, be considered a legally qualified candidate only in those States or territories (or the District of Columbia) in which, in addition to meeting the requirements set forth in paragraph (a) of this section:
(1) He or she, or proposed delegates on his or her behalf, have qualified for the primary or Presidential preference ballot in that State, territory or the District of Columbia; or
(2) He or she has made a substantial showing of a bona fide candidacy for such nomination in that State, territory or the District of Columbia; except, that any such person meeting the requirements set forth in paragraphs (a)(1) and (2) of this section in at least 10 States (or 9 and the District of Columbia) shall be considered a legally qualified candidate for nomination in all States, territories and the District of Columbia for purposes of this Act.
(f) The term “substantial showing” of a bona fide candidacy as used in paragraphs (b), (d), and (e) of this section means evidence that the person claiming to be a candidate has:
(1) Satisfied the requirements under applicable law to run as a write-in (such as registering, collecting signatures, paying fees, etc.); and
(2) Has engaged to a substantial degree in activities commonly associated with political campaigning. Such activities normally would include making campaign speeches, distributing campaign literature, issuing press releases, maintaining a campaign committee, establishing campaign headquarters (even though the headquarters in some instances might be the residence of the candidate or his or her campaign manager), creating a campaign website, and using social media for the purpose of promoting or furthering a campaign for public office. Not all of the listed activities are necessarily required in each case to demonstrate a substantial showing, and there may be activities not listed herein which would contribute to such a showing. The creation of a campaign website and the use of social media shall be additional indicators of a bona fide candidacy, not determinative factors, and such digital activities must be combined with other activities commonly associated with political campaigning that are conducted in substantial portions of the relevant geographic area.