SAN FRANCISCO (June 3, 2008) — San Francisco Ordinance No. 268-05 requires pit bull owners in San Francisco to have their dogs spayed or neutered, and imposes penalties on those who fail to comply. In Coalition of Human Advocates for K9’s and Owners (“CHAKO”) v. City and County of San Francisco, et al., Case No. 06-1887 MMC (N.D. Cal.), the plaintiffs challenged the validity of the ordinance, alleging that it violates numerous federal and state constitutional provisions, including the Equal Protection Clause of the U.S. Constitution, the Commerce Clause of the U.S. Constitution, the right to happiness protected by Article I, Section 1 of the California Constitution, and the federal Americans with Disabilities Act (“ADA”).