Whether Alabama could use punitive damages to punish BMW for lawful conduct in other States or to force a nationwide change in BMW's disclosure policy.
Holding
No. Alabama could punish and deter conduct that injured Alabama consumers, but it could not impose economic sanctions designed to punish conduct lawful where it occurred or to regulate BMW's conduct in other States.
Reasoning
Punitive damages serve legitimate state interests in punishment and deterrence, and Alabama may protect its own consumers from deceptive automobile-sales practices. But the States have adopted differing policies on the disclosure of presale repairs. Many States set repair-cost thresholds and did not require disclosure of repairs as minor as those made to Gore's car.
A State may not use its punitive-damages power to override other States' policy choices. Alabama therefore could not punish BMW for sales outside Alabama when the nondisclosure was lawful where it occurred and had no impact on Alabama residents. Doing so would improperly project Alabama's regulatory policy beyond its borders and burden the national market.
The Court accepted the Alabama Supreme Court's conclusion that the original jury verdict was based substantially on nationwide sales. Although evidence of out-of-state conduct may be relevant to showing a pattern of conduct or assessing reprehensibility, it cannot be used to calculate a punitive sanction for conduct that Alabama has no authority to punish. The $2 million remitted award consequently had to be assessed solely in light of Alabama's interests and BMW's Alabama conduct.