Which of the following Acts enacted in United States amends Civil Rights Act of 1964, providing technical changes affecting the length of time allowed to challenge unlawful seniority provisions, to su

The Sexual Predators Act targets criminal prosecution of sex offenders and has no connection to employment discrimination law or amendments to the Civil Rights Act of 1964.

The Civil Rights Act of 1991 directly amended the Civil Rights Act of 1964 by modifying the statute of limitations for challenging unlawful seniority systems, allowing employees to sue the federal government for employment discrimination, and adjusting the filing window for age discrimination claims under the ADEA. It also introduced compensatory and punitive damages for intentional discrimination and codified the disparate impact theory of liability.

The PROTECT Act of 2003 addresses child abduction and exploitation prevention and does not amend any employment discrimination or civil rights statutes.

The USA PATRIOT Act of 2001 expanded law enforcement surveillance powers related to terrorism investigations and has no bearing on employment discrimination, seniority systems, or civil rights claim procedures.