People who anticipate harm occasionally attack a law's constitutionality before it is applied to them, or even before the law takes effect. A federal court may decline to decide such a case for lack of ripeness if it is unclear that adjudication is needed to protect the challengers, or if information sufficient to permit intelligent resolution is not yet available. A matter of timing and degree, ripeness is grounded both in Article III's CASE OR CONTROVERSY requirement and the federal courts' reluctance to issue constitutional decisions needlessly or prematurely. Delaying decision may cause interim hardship and allow unconstitutional harm to occur, but further developments may narrow the issues, or produce important information, or even establish that no decision is needed.
The Supreme Court's ripeness decisions display varying sensitivity to these sometimes conflicting factors. Normally, a court is more likely to defer resolution of fact-dependent issues, like those based on a particular application of a law, than it is to defer adjudication of strictly legal issues. A single case may present some issues ripe for adjudication, but others not ripe. Ripeness decisions mainly respond, however, to the degree of contingency or uncertainty of the law's expected effect on the challenger.
Where leeway exists, the court may be influenced by determining whose interests a quicker decision would serve. Thus, when federal civil servants fearing dismissal for violation of the HATCH ACT asked that the political activities they were contemplating be declared constitutionally protected in United Public Workers v. Mitchell (1947), the Court found the case unripe absent enforcement of the act against some particular employee behavior. Similarly, a challenge to IMMIGRATION policy was held unripe in International Longshoremen's Union v. Boyd (1954) despite a strong indication that, without a ruling, resident ALIENS risked jeopardizing their right to return to the United States. With little doubt that the laws would be applied, the challengers nonetheless were forced to act at their peril. By contrast, when a delay in decision has threatened to frustrate government policy, the Court has resolved anticipatory challenges to laws whose future application appeared inevitable, including legislation restructuring some of the nation's railroads in the Regional Rail Reorganization Act Cases (1974) and the FEDERAL ELECTION CAMPAIGN ACTS in...