; and (iii) a false claims law investigator shall be deemed to be a reference to— (I) any attorney or investigator employed by the Department of Justice who is charged with the duty of enforcing or carrying into effect this section; or (II) any officer or employee of the United States acting under the direction and supervision of an attorney or investigator described in subclause (I) in connection with an inquiry into whether any person is or has been engaged in filing a false certification under subsection (d) of this section. 5. Enforcement (a) Offense It shall be unlawful for an officer of a provider of an interactive computer service to knowingly submit a written certification under section 4(d) that contains a false statement. (b) Criminal penalties Any person who violates subsection (a) shall be fined in accordance with title 18, United States Code, imprisoned for not more than 2 years, or both. 6. Earning immunity (a) In general Section 230(e) of the Communications Act of 1934 ( 47 U.S.C. 230(e) ) is amended by adding at the end the following: (6) No effect on child sexual exploitation law (A) Liability of providers of interactive computer service Nothing in this section (other than subsection (c)(2)(A)) shall be construed to impair or limit— (i) any claim in a civil action brought against a provider of an interactive computer service under section 2255 of title 18, United States Code, if the conduct underlying the claim— (I) constitutes a violation of section 2252 or section 2252A of that title; or (II) is considered a violation of section 2252 or section 2252A of that title by operation of subsection (a)(2) of such section 2255; (ii) any charge in a criminal prosecution brought against a provider of an interactive computer service under State law if the conduct underlying the charge would constitute a violation of section 2252 or section 2252A of title 18, United States Code