; and (B) ensure that the notice will continue to be displayed if a viewer of the advertisement shares the advertisement with others on that platform. (2) Safe harbor An online platform shall not be treated as having failed to comply with the requirements of paragraph (1)(A) for the misidentification of a person as the sponsor of the advertisement if— (A) the person placing the online advertisement designated the person displayed in the advertisement as the sponsor; and (B) the online platform relied on such designation in good faith. (3) Definitions In this subsection— (A) the term online platform has the meaning given such term in subsection (j)(3); (B) the term ‘ qualified political advertisement has the meaning given such term in subsection (j)(4); and (C) the term sponsor means the person purchasing the advertisement. . (b) Effective date The amendment made by subsection (a) shall apply with respect to advertisements displayed on or after the 120-day period which begins on the date of the enactment of this Act and shall take effect without regard to whether or not the Federal Election Commission has promulgated regulations to carry out such amendments.