A federal appeals court has struck portions of California’s election law that require ballot-initiative proponents to disclose their identities on petitions, but upheld a separate requirement that official initiative proponents be real people, not associations or corporations.

Monday’s opinion by the U.S. Court of Appeals for the Ninth Circuit was a mixed result for James Bopp of The Bopp Law Firm in Terre Haute, Ind., in his latest First Amendment challenge to election laws.