Here are the sections of Arizona's immigration law considered by the U.S. Supreme Court:

UPHELD:

- A requirement that police, while enforcing other laws, question people's immigration status if officers have reasonable suspicion they're in the country illegally.

STUCK DOWN:

- A requirement that all immigrants obtain or carry immigration registration papers.

- A provision making it a state criminal offense for an illegal immigrant to seek work or hold a job.

- A provision that would allow police to arrest suspected illegal immigrants without warrants.