AT&T Corp. v. Hulteen
The Supreme Court ruled that AT&T did not violate the Pregnancy Discrimination Act by continuing to pay pensions calculated under old rules that gave women less retirement credit for pregnancy leave taken before the law was passed in 1978.
Because those old rules were part of a legitimate seniority system and were lawful when adopted, a special provision of civil rights law shields them from challenge, even though the same rules would be illegal today.
“an exclusion of pregnancy from a disability-benefits plan providing general coverage [was] not a gender-based discrimination at all.”
Explaining why AT&T's pre-1979 rule was lawful under the Court's earlier Gilbert decision.
How it got here: A federal trial court ruled against AT&T based on Ninth Circuit precedent; the en banc Ninth Circuit affirmed, splitting from the Sixth and Seventh Circuits, and the Supreme Court agreed to resolve the conflict.
The Case in Depth
What happened
Since 1914, AT&T calculated pensions using a seniority system based on years worked. Before 1979, women on pregnancy leave got less service credit than employees on other medical leave, a practice the Supreme Court had said was legal in 1976. In 1978 Congress passed the Pregnancy Discrimination Act to ban this. AT&T fixed the rule going forward in 1979 but never recalculated pensions for women who took pregnancy leave before that date, leaving four women with smaller pensions than colleagues who had worked equally long.
The question before the Court
If a company's old pension rules gave women less credit for pregnancy leave than for other medical leave before a 1978 law banned that, must the company fix pensions for leave taken before the law changed?
The Court's answer
No — the Court ruled that AT&T did not violate the Pregnancy Discrimination Act by continuing to pay pensions calculated under its old, pre-1979 rules. Those rules gave less retirement credit for pregnancy leave than for other medical leave, but at the time they were applied, the Supreme Court's own precedent (Gilbert) said that was not sex discrimination at all. Because the rules were part of a legitimate, non-discriminatory seniority system when adopted, a Title VII provision protecting such systems shields them from later challenge.
The Court refused to read the 1978 law as reaching backward to relabel that old conduct as illegal, absent clear evidence Congress intended that. So AT&T's failure to recalculate the affected women's pensions after the law changed was not itself a new violation, even though the same accrual rule would be unlawful if adopted today.
Curious how the Court got there? See the step-by-step legal reasoning →
Why it matters
Women who took pregnancy leave before April 1979 and whose pensions were calculated under AT&T's old accrual rules will continue receiving smaller pensions than colleagues with equivalent service time. The ruling also signals to other employers that seniority systems reflecting once-lawful, now-outdated distinctions can keep producing lower benefits without triggering new discrimination claims, unless Congress says otherwise.
What changes now
This is a final merits decision reversing the Ninth Circuit, so the four women and others in similar positions will not receive adjusted pension credit for their pre-1979 pregnancy leave. The ruling resolves a circuit split by siding with the Sixth and Seventh Circuits. Any further relief for affected workers would require new legislation from Congress rather than additional litigation under existing law.
What this does not decide
The Court did not decide that pregnancy-based pension distinctions are lawful today — it made clear that adopting such a rule now would violate the Pregnancy Discrimination Act. The ruling is limited to whether a pre-1979 rule, lawful when made, can still be applied under a shielded seniority system after the law changed.
Concurrences and dissents
Concurrence — Justice Stevens
Justice Stevens said he still believes the Court's 1976 Gilbert decision was wrongly decided and largely agreed with Justice Ginsburg's criticism of it. But he reasoned that Gilbert was the governing law until Congress passed the Pregnancy Discrimination Act, and because this case involves only pre-Act conduct, he joined the majority.
Dissent — Justice Ginsburg
“I would construe the Act to embrace plaintiffs’ complaint, and would explicitly overrule Gilbert so that the decision can generate no more mischief.”Ginsburg's call to overturn the 1976 Gilbert ruling entirely.
Justice Ginsburg argued that Congress's forceful repudiation of Gilbert meant employers must stop applying pregnancy-based distinctions to 'all employment-related purposes' going forward, including pension payments, even if the leave itself predated the law. She viewed AT&T's continued reliance on the old accrual rule as a current, ongoing violation, not merely a lingering effect of past lawful conduct, and would have affirmed the Ninth Circuit and explicitly overruled Gilbert.
How the Court got there
The legal reasoning, step by step
- The Court applied §703(h) of Title VII, which shields a 'bona fide seniority system' — one with no discriminatory terms — from Title VII challenges as long as differences in benefits are not the result of an intent to discriminate.
- Applying its 1977 decision in Teamsters v. United States, which held that a pre-existing seniority system can be bona fide even though it perpetuates disparities caused by past discrimination, the Court asked whether AT&T's system itself contained a discriminatory term.
- Because the Court had held in 1976 (in General Electric Co. v. Gilbert) that giving less service credit for pregnancy leave than other medical leave was not sex discrimination at all under the law as it then stood, AT&T's rule was not legally discriminatory when it was adopted or applied before 1979.
- The Court declined to treat the 1978 Pregnancy Discrimination Act as reaching backward to relabel AT&T's pre-1979 conduct as illegal, relying on a strong presumption against reading statutes to apply retroactively absent clear congressional intent, and found no such intent in the statute's text or history.
- The Court rejected arguments that a separate provision governing intentionally discriminatory seniority systems, or the 2009 Ledbetter Fair Pay Act's compensation-discrimination provision, could revive a claim, because neither applies unless the underlying pay decision was itself discriminatory — which AT&T's pre-1979 decision was not.
- Because AT&T's seniority system had no discriminatory terms and its later payments simply carried forward legally permissible past distinctions, the system remained protected under §703(h), and AT&T's continuing reliance on it was not itself a violation.
Doctrinal impact
Cases affected by this decision
Reaffirms General Elec. Co. v. Gilbert (429 U. S. 125)
The Court treated Gilbert as having correctly stated the law at the time, making AT&T's old rule lawful when adopted.
Reaffirms Teamsters v. United States (431 U. S. 324)
The Court relied on Teamsters' rule that a seniority system with no discriminatory terms is shielded even if it perpetuates old disparities.
Distinguishes Bazemore v. Friday (478 U. S. 385)
The Court said Bazemore did not apply because it did not involve a seniority system and the employer kept using a plan illegal from day one.