; or (ii) in the case of the 3rd such violation by the person, all licenses issued to the person under this chapter shall be revoked. (B) A person who knowingly violates section 922(aa)(2)(B) shall be— (i) fined not more than— (I) $20,000, in the case of the 1st such violation by the person; or (II) $50,000, in the case of any subsequent such violation by the person; (ii) imprisoned not more than 5 years; or (iii) both. (C) Whoever knowingly violates subparagraph (C)(i) or (D) of section 922(aa)(2) shall be fined not more than $10,000. . (c) Signage requirement (1) In general Section 923(g) of such title is amended by adding at the end the following: (8) Each person licensed under this chapter shall post at the premises of the licensee subject to the license a sign on which there is set forth, in accordance with regulations prescribed by the Attorney General— (A) a summary of paragraphs (1) and (2)(B) of section 922(aa), and the penalties for making false statements on a written certification made pursuant to section 922(aa)(1)(B)(i)