; and (B) shall not be required to demonstrate that disability or an activity protected by subsection (a) or (b) of section 503 was the sole cause of an employment practice. . (3) Age Section 4 of the Age Discrimination in Employment Act of 1967 ( 29 U.S.C. 623 ) is amended by inserting after subsection (f) the following: (g) (1) Except as otherwise provided in this Act, an unlawful practice is established under this Act when the complaining party demonstrates that age or an activity protected by subsection (d) was a motivating factor for any practice, even though other factors also motivated the practice. (2) In establishing an unlawful practice under this Act, including under paragraph (1) or by any other method of proof, a complaining party— (A) may rely on any type or form of admissible evidence and need only produce evidence sufficient for a reasonable trier of fact to find that an unlawful practice occurred under this Act; and (B) shall not be required to demonstrate that age or an activity protected by subsection (d) was the sole cause of a practice. . (4) Genetic information Section 202 of the Genetic Information Nondiscrimination Act of 2008 ( 42 U.S.C. 2000ff–1 ), as amended by section 204(c)(5), is further amended by adding at the end the following: (e) Proof (1) Establishment Except as otherwise provided in this title, an unlawful employment practice is established under this title when the complaining party demonstrates that genetic information or an activity protected by section 207(f) was a motivating factor for any employment practice, even though other factors also motivated the practice. (2) Demonstration In establishing an unlawful employment practice under paragraph (1) or by any other method of proof, a complaining party— (A) may rely on any type or form of admissible evidence and need only produce evidence sufficient for a reasonable trier of fact to find that an unlawful employment practice occurred under this title