On June 25, 2012, the U.S. Supreme Court ruled, in a 5-3 decision, that three of the four challenged provisions of S.B. 1070 (Arizona’s Support Our Law Enforcement and Safe Neighborhoods Act) were preempted by federal immigration law. Arizona et al. v. U.S. , No. 11-182 (June 25, 2012). The Court upheld Section 2(B) of the Act, which requires law enforcement officers to check a person’s immigration status while enforcing other laws if reasonable suspicion exists concerning the person’s legality. The decision confirmed, however, that other preemption and constitutional challenges to the law as interpreted and applied could be brought. The Court struck down provisions making it a misdemeanor for an individual to fail to comply with federal alien registration requirements; making it a criminal offense for an undocumented worker to solicit, apply for or perform work in the state; and authorizing state and local officers to arrest a person when the officer has probable cause to believe he or she has committed a public offense making the person removable from the United States.