Caban v. Mohammed
Does a New York statute that requires the consent of an unwed mother, but not an unwed father, before an illegitimate child can be adopted violate the Equal Protection Clause of the Fourteenth Amendment?
The Decision
5-4 decision · Opinion by Lewis F. Powell Jr. · 1979
Majority Opinion— Lewis F. Powell Jr.concurring ↓dissent ↓
In a 5–4 decision authored by Justice Lewis F. Powell Jr., the Supreme Court struck down the New York statute as a violation of the Equal Protection Clause of the Fourteenth Amendment. The Court held that the sex-based distinction in the law—requiring the consent of the unwed mother but not the unwed father before an illegitimate child could be adopted—was not substantially related to any important governmental objective, at least as applied to fathers like Caban who had established substantial relationships with their children.
The majority applied intermediate scrutiny, the standard established in Craig v. Boren (1976) for evaluating sex-based classifications. Under this standard, a gender-based law must serve an important governmental interest and the discriminatory means chosen must be substantially related to achieving that interest. The Court acknowledged that the state has a legitimate interest in promoting the adoption of illegitimate children and in ensuring that the adoption process runs smoothly. However, the Court found that a blanket rule distinguishing between all unwed mothers and all unwed fathers did not substantially further these interests.
Justice Powell's opinion emphasized that the law rested on an overbroad generalization about the roles of mothers and fathers. While it might be true that unwed mothers are more likely, on average, to have a closer relationship with their newborn children—particularly in the period immediately following birth—this generalization does not hold in cases where fathers have developed meaningful, ongoing relationships with their children. The Court noted that maternal and paternal roles are not invariably different, especially as children grow older, and that Caban's deep involvement with David and Denise demonstrated that the law's assumption was plainly inapplicable in his case.
The Court also rejected the argument that administrative convenience justified the blanket distinction. Even though requiring notice to and consent from unwed fathers might create additional procedural steps, the Court held that such convenience cannot justify a sweeping sex-based classification that deprives an entire class of parents of fundamental rights. The majority noted that New York could address its legitimate concerns through more narrowly tailored means—for instance, by distinguishing between fathers who have demonstrated a substantial relationship with their children and those who have not, rather than drawing the line based solely on gender.
Concurring Opinions
There were no separately written concurring opinions of particular note in this case; all five justices in the majority joined Justice Powell's opinion without additional comment.
Dissenting Opinions
Potter Stewartjoined by William Rehnquist
Justice Stewart argued that the distinction between unwed mothers and unwed fathers is grounded in fundamental biological reality: a mother carries a child, gives birth, and is necessarily identified at the time of birth, whereas a father's identity and relationship may be uncertain. He believed this biological difference provided a sufficient basis for the legislature's sex-based classification.
- The relationship between a mother and her newborn child is unique and biologically established at birth in a way that a father's relationship is not, which the legislature was entitled to recognize.
- The statute did not reflect mere gender stereotyping but rather real physiological differences that have practical consequences for determining parentage and custodial relationships.
- The majority's approach of evaluating the law as applied to particular fathers who happen to have established relationships improperly transforms the equal protection analysis from a facial review into a case-by-case inquiry.
John Paul Stevensjoined by Warren E. Burger, William Rehnquist
Justice Stevens argued that the New York law served the important state interest of facilitating adoptions for children born out of wedlock and that the gender classification was substantially related to that interest. He contended that the majority failed to give proper deference to the state legislature's judgment about what best serves the welfare of illegitimate children.
- In the vast majority of cases, it is the unwed mother—not the father—who bears the responsibility of caring for children born out of wedlock, and the legislature was entitled to craft a rule that reflects this general reality.
- Requiring the consent of unwed fathers for all adoptions could delay or prevent beneficial adoptions and harm the very children the adoption system is designed to protect.
- The majority's focus on cases like Caban's, where the father had an established relationship, ignores the broader population of illegitimate children for whom the statute was designed and effectively substitutes judicial judgment for legislative policymaking.
Background & Facts
Abdiel Caban and Maria Mohammed (born Maria Garcia) were an unmarried couple who lived together in New York City for approximately five years during the late 1960s and early 1970s. During their time together, they had two children: a son, David, born in 1969, and a daughter, Denise, born in 1971. Caban was listed as the father on both children's birth certificates, lived with the family, and contributed to the children's financial support. By all accounts, he was an involved and present father throughout the time the couple lived together.
Around 1973, the couple separated. Maria subsequently married Kazim Mohammed. The children initially went back and forth between the two households, but eventually came to live primarily with Maria and her new husband. In 1976, the Mohammeds petitioned to adopt the two children. Under New York's Domestic Relations Law, Section 111, the consent of the mother was required before a child born out of wedlock could be adopted, but the consent of the father was not. This meant that even though Caban had been a deeply involved parent, the law treated his objection to the adoption as legally irrelevant. Caban and his new wife, Nina, filed a cross-petition seeking to adopt the children themselves.
The Surrogate's Court in New York granted the Mohammeds' adoption petition, relying on the statute that did not require the unwed father's consent. Caban appealed, arguing that the law's sex-based distinction between unwed mothers and unwed fathers violated the Equal Protection Clause of the Fourteenth Amendment. The Appellate Division affirmed the lower court's decision, and the New York Court of Appeals also upheld the statute, ruling that the gender distinction was justified.
Caban then petitioned the United States Supreme Court, which agreed to hear the case. The Court took the case because it raised a significant constitutional question about whether states could draw gender-based lines in adoption law that effectively gave mothers absolute veto power over adoptions while denying fathers any comparable say—even fathers who had maintained substantial, ongoing relationships with their children.
The Arguments
Caban argued that New York's law unconstitutionally discriminated against him on the basis of sex by denying him, as an unwed father, the same right to block the adoption of his children that an unwed mother would automatically have. He contended that this gender-based classification violated the Equal Protection Clause, especially given his established, substantial relationship with his children.
- Caban had lived with his children for years, was identified as their father on their birth certificates, and had been an active, involved parent throughout their lives.
- The sex-based distinction in New York's law bore no substantial relationship to any important state interest, because both unwed mothers and unwed fathers can form deep bonds with their children.
- The law was both over-inclusive and under-inclusive: it denied rights to involved fathers like Caban while granting automatic veto power to all mothers regardless of their actual involvement with the child.
The Mohammeds argued that the New York statute was constitutionally valid because it reflected real differences between the situations of unwed mothers and unwed fathers, and that the law served the state's important interest in facilitating the adoption of children born out of wedlock into stable homes.
- Unwed mothers have a closer and more certain biological and custodial connection to their children from the moment of birth, which justifies treating them differently from unwed fathers in adoption proceedings.
- The state has a strong interest in promoting the welfare of illegitimate children by making the adoption process efficient, and requiring the identification and consent of every unwed father would create significant administrative burdens.
- The New York legislature made a reasonable policy judgment that, in the typical case, unwed fathers are less likely to have developed a meaningful relationship with their children than unwed mothers.
Cited In
Little v. Hecox
2025 Term · 24-38
Central to the debate over whether as-applied equal protection challenges exist under intermediate scrutiny. Respondents argued Caban established that sex-based laws are unconstitutional as applied to subgroups where the justification doesn't hold.
West Virginia v. B.P.J.
2025 Term · 24-43
Cited by respondent as precedent for as-applied equal protection challenges to sex classifications — arguing a classification valid for most people can be invalid as applied to a discrete subset.