; and (2) in subsection (f), by amending paragraph (1) to read as follows: (1) Criminal penalty Any person or entity that engages in a pattern or practice of violations of paragraph (1) or (2) of subsection (a) shall be fined not more than $30,000 for each unauthorized alien with respect to which such a violation occurs, imprisoned for not more than 18 months, or both. . (b) Effective date (1) In general Except as provided in paragraph (2), the amendments made by subsection (a) shall take effect on the date of the enactment of this Act. (2) Continued employment after final nonconfirmation (A) In general Paragraph (13) of section 274A(e) of the Immigration and Nationality Act, as added by subsection (a)(1)(D), shall take effect on the date that is 6 months after the date of the enactment of this Act. (B) Penalty calculations The calculation of any penalties under section 274A(e)(13)(B) of the Immigration and Nationality Act, as added by subsection (a)(1)(D), shall not include any period of continuing employment before the effective date referred to in subparagraph (A). 9. E-Verify self-check (a) In general The Secretary of Homeland Security, in consultation with the Commissioner of Social Security, shall establish a secure self-verification procedure to permit an individual to verify his or her employment eligibility. (b) Elements The self-verification procedure established under subsection (a)— (1) shall be subject to appropriate safeguards to prevent misuse of the confirmation system, including requiring employees or applicants— (A) to use any self-verification feature; or (B) to provide the employer with self-verification results