; and (ii) creates a rebuttable presumption that the employer has violated paragraph (1)(A) or (2) of subsection (a). (B) Exception (i) In general Subparagraph (A) shall not apply in a criminal prosecution. (ii) Use as evidence Nothing in this paragraph may be construed to limit the use in the prosecution of a Federal crime, in a manner otherwise consistent with Federal criminal law and procedure, of evidence relating to the employer’s failure to comply with requirements of the System. (4) Procedures for participants in the system (A) In general An employer participating in the System shall register such participation with the Secretary and, when hiring any individual for employment in the United States, shall comply with the following: (i) Registration of employers The Secretary, through notice in the Federal Register, shall prescribe procedures that employers shall be required to follow to register with the System. (ii) Updating information The employer is responsible for providing notice of any change to the information required under subclauses (I), (II), and (III) of clause (v) before conducting any further inquiries within the System, or on such other schedule as the Secretary may prescribe. (iii) Training The Secretary shall require employers to undergo such training as the Secretary determines to be necessary to ensure proper use, protection of civil rights and civil liberties, privacy, integrity, and security of the System. To the extent practicable, such training shall be made available electronically on the U.S. Citizenship and Immigration Services website. (iv) Notification to employees The employer shall inform individuals hired for employment that the System— (I) will be used by the employer; (II) may be used for immigration enforcement purposes