## Facts

- Duke Power Company constructed nuclear power plants in North and South Carolina subject to federal licensing by the Nuclear Regulatory Commission (NRC).
- Environmental and labor organizations and nearby residents challenged the constitutionality of the Price–Anderson Act, which capped aggregate liability for a single nuclear incident at $560 million.
- The Act required indemnified parties to waive legal defenses in the event of a substantial nuclear accident and included a congressional commitment to consider further action if damages exceeded the cap.
- Plaintiffs alleged present harms from plant operations, including thermal effects on nearby lakes and emission of non-natural radiation, as well as increased risk of uncompensated injury from a future catastrophic accident.
- The district court found a substantial likelihood that Duke would not complete and operate the plants without the Act’s liability protections.
- The district court held the Act unconstitutional under Fifth Amendment due process and equal protection principles, reasoning the cap was not reasonably related to potential losses and unfairly shifted accident costs to a limited class of victims.

## Issues

1. Whether the federal courts had jurisdiction to hear a constitutional challenge to the statutory liability scheme administered in connection with NRC-licensed facilities.
2. Whether plaintiffs had Article III standing and whether the dispute was ripe where no catastrophic nuclear incident had occurred.
3. Whether the Price–Anderson liability cap and related provisions violated Fifth Amendment due process by arbitrarily limiting common-law recovery and failing to provide adequate compensation.
4. Whether the Act violated the equal protection component of the Fifth Amendment by treating victims of nuclear incidents differently from victims of other industrial accidents.
5. Whether the Act effected an unconstitutional taking of property without just compensation.

## Decision

- The Supreme Court reversed and upheld the constitutionality of the Price–Anderson Act.
- The Court held federal-question jurisdiction was proper and that plaintiffs had standing and a ripe controversy based on present environmental injuries and the finding that the plants’ completion depended on the challenged liability regime.
- Applying deferential review for economic legislation, the Court held the liability limitation was rationally related to Congress’s objectives of encouraging private participation in nuclear energy while assuring a substantial compensation fund.
- The Court rejected the equal protection challenge, holding the different treatment of nuclear-incident victims was rational in light of the industry’s distinctive risks and economics and Congress’s policy choice.
- The Court rejected a present takings claim as unripe and noted that, if uncompensated injury attributable to federal action later occurred, a compensation remedy could be pursued under the Tucker Act.

## Legal Principles

- Plaintiffs may establish standing and ripeness to challenge a statutory scheme when they show concrete present injury and a sufficient causal connection between that injury and the challenged regime, even if a feared catastrophic event has not occurred.
- Social and economic legislation that alters common-law remedies generally satisfies due process if it is not arbitrary or irrational and bears a rational relationship to legitimate governmental purposes.
- A statutory liability limitation may be constitutional where it provides a reasonable substitute for common-law remedies, including an assured compensation fund, procedural mechanisms facilitating recovery, and allocation rules for limited funds.
- Under the Fifth Amendment’s equal protection component, differential treatment is permissible if the classification is rationally related to legitimate governmental objectives.
- A takings claim based on contingent future uncompensated injury is generally unripe before the injury occurs, and the availability of a post-injury compensation action bears on the constitutional analysis.

## Conclusion

The Court sustained Congress’s specialized nuclear-liability framework, finding the Price–Anderson Act a rational means to encourage nuclear development while providing an assured compensation structure, and it confirmed that present environmental injury could support standing to litigate the scheme’s constitutionality.


Duke Power Co. v. Carolina Env’t Study Grp., Inc., 438 U.S. 59 (1978)