The New Jersey Senate on Thursday approved a bill which seeks to ban therapies that attempt to alter a minor's sexual orientation from gay to straight.

The proposed legislation, which is modeled after California's first-in-the-nation law, would prohibit mental health professionals from engaging in “sexual orientation change efforts” with a minor.

Three days after the Assembly approved the measure, it cleared the Senate with a 28-9 vote. It now heads to Republican Governor Chris Christie's desk for his signature.

The bill was championed in the Senate by Democratic Senators Raymond Lesniak and Loretta Weinberg and Senate President Stephen Sweeney, also a Democrat.

“Conversion therapy not only has no basis in science, it has proven to be harmful to young people,” Lesniak is quoted as saying by The Star-Ledger. “Most of the major psychiatric, psychological and counseling organizations have warned of dangers of this practice. I believe it is a type of child abuse that should be prevented.”

Christie has previously stated his opposition to such therapies, but has not said whether he will sign the legislation into law. In a radio interview this week, Christie reiterated that he believes that being gay is not a choice.

(Related: New Jersey's Chris Christie calls DOMA ruling “wrong.”)