Huffington Post says:

Judge Mary Jacobson of the Mercer County Superior Court ruled Friday that gay couples can marry in the Garden State starting October 21.

“This unequal treatment requires that New Jersey extend civil marriage to same-sex couples to satisfy equal protection guarantees of the New Jersy Constitution as interpreted by the New Jersey Supreme Court in Lewis,” wrote the judge. “Same-sex couples must be allowed to marry in order to obtain equal protection of the law under the New Jersey Constitution.”