I Doctrinal Framework

A complete equal protection analysis proceeds in six steps.

II. Classification: Facial, Purposeful, and Disparate Impact

A facial classification is the easiest to identify. A law that says “only men may apply,” “only citizens may receive this benefit,” or “members of one race may not enter” classifies on its face. The legal analysis then turns to which category is used and what level of scrutiny applies.

A facially neutral law may still raise equal protection concerns if it was enacted or administered for a discriminatory purpose. Purpose can be shown through context, history, statements by decisionmakers, departures from ordinary procedures, statistical patterns, or the foreseeable and intended operation of the law. The key is intent. The Constitution is concerned not only with explicit discrimination but also with government efforts to disguise discrimination through neutral language.

Disparate impact is different. A law may affect one group more harshly than another without having been adopted for a discriminatory reason. Disparate impact may be relevant evidence, but impact alone usually does not trigger heightened scrutiny. The challenger must show discriminatory purpose when the law is facially neutral.

III Levels of Scrutiny

Equal protection doctrine depends heavily on scrutiny. The level of scrutiny often determines the result. A law that easily survives rational basis review may fail strict scrutiny. Therefore, an exam answer must explain why the selected level of scrutiny applies before applying it.

IV. Race and National Origin

Race and national origin are suspect classifications. Government classifications based on race or national origin usually receive strict scrutiny. The government must prove a compelling interest and narrow tailoring.

Race classifications are suspect whether they burden racial minorities or are claimed to benefit them. The constitutional concern is that government use of race risks stigma, stereotype, political division, and unequal citizenship. Therefore, even remedial or diversity-based racial classifications require close review.

A compelling interest must be specific and constitutionally sufficient. Generalized appeals to fairness, diversity, or remedying broad societal discrimination may not be enough in many contexts. Narrow tailoring requires a close fit between the classification and the goal. The government should consider whether race-neutral alternatives are available, whether the classification is overbroad or underinclusive, whether it is temporary or indefinite, and whether it unnecessarily burdens individuals.

V. Affirmative Action and Remedial Classifications

Government affirmative action programs require special care. Because they use race expressly, strict scrutiny applies. The government must identify a compelling interest and use means narrowly tailored to that interest.

A remedial program is strongest when it responds to identified discrimination by the governmental entity or within a specific area for which the government has responsibility. It is weaker when it relies on broad claims of societal discrimination without a direct connection to the program.

Students should be careful with this area because doctrine is active and assigned case law often matters. For hornbook and bar purposes, the safe rule is that government racial classifications are always suspect, and remedial motives do not eliminate strict scrutiny.

VI. Alienage

Alienage classifications involve distinctions between citizens and noncitizens. The level of scrutiny depends on the government actor and the type of noncitizen.

• State Laws (Lawful Resident Aliens): State laws discriminating against lawful resident aliens often receive strict scrutiny. Lawful resident aliens are persons under the Fourteenth Amendment, and state discrimination against them may resemble outsider-based exclusion from ordinary civic and economic life.
• The Political-Function Exception: States may reserve certain positions closely connected to democratic self-government for citizens. Roles involving policymaking, law enforcement authority, public governance, or participation in the political community (like police officers or public school teachers) may fall within this exception. The state’s argument is stronger when the job involves discretionary authority over public policy or coercive government power.
• Federal Laws: Federal alienage classifications are treated more deferentially because immigration, naturalization, and foreign relations are national powers. Congress and the federal government have broader authority to distinguish among citizens and noncitizens in immigration-related contexts.

Undocumented persons are still persons under the Fourteenth Amendment, but they do not receive the same level of protection as lawful resident aliens. Laws affecting undocumented persons may still be unconstitutional in certain settings, especially where children or unusual penalties are involved, but strict scrutiny is not automatically applied.

VII. Sex Classifications

Sex classifications receive intermediate scrutiny. The government must show an important governmental objective and a substantial relationship between the classification and that objective.

The justification must be genuine. It cannot be invented after the fact. It also cannot rest on overbroad generalizations about the talents, capacities, preferences, or proper roles of males and females. Equal protection doctrine is especially skeptical of laws that preserve traditional stereotypes by assuming that men are naturally suited for some roles and women for others.

A sex classification may sometimes be valid where it reflects real biological differences relevant to the law’s objective. But the government must still show that the classification is substantially related to an important goal. Convenience, administrative ease, or habit is not enough.

VIII. Legitimacy

Legitimacy classifications distinguish between children based on whether their parents were married. These classifications generally receive intermediate scrutiny.

The reason is straightforward. A child has no control over the marital status of the parents. Laws that burden nonmarital children risk punishing children for circumstances unrelated to their own conduct or capacity.

Government may have legitimate interests in orderly inheritance rules, proof of parentage, or administrative finality. But a law burdening nonmarital children must be substantially related to an important objective. A rule that broadly denies benefits or rights to children because of nonmarital parentage is constitutionally suspect.

IX Rational Basis Categories: Age, Disability, Wealth

Most classifications receive rational basis review. This includes age, disability, poverty, and ordinary economic classifications. Under rational basis review, the law is valid if it is rationally related to a legitimate governmental interest.

This is highly deferential. The government usually does not need to prove that the legislature actually relied on the asserted rationale. A conceivable legitimate purpose may suffice. The law may be imperfect, overinclusive, or underinclusive and still survive.

However, rational basis review is not always meaningless. A law may fail even rational basis review if it appears to rest on animus, bare desire to harm an unpopular group, or a classification so disconnected from any legitimate purpose that it seems arbitrary.

X. Fundamental Rights and Equal Protection

Some equal protection cases involve classifications affecting fundamental rights. The same right may also be protected by substantive due process. The framing matters.

Substantive due process asks whether government has infringed a fundamental liberty. Equal protection asks whether government has distributed access to a right or benefit unequally. If a law burdens a fundamental right or discriminates in access to a fundamental interest, heightened scrutiny may apply.

Fundamental rights commonly tested in equal protection include voting and interstate travel. Education and wealth are classic traps because they are important but not generally treated as fundamental or suspect under federal equal protection doctrine.

XI. Voting

Voting is a central fundamental right. Laws that severely burden voting rights are subject to strict scrutiny. The government must show that the restriction is narrowly tailored to serve a compelling interest.

Not every election regulation receives strict scrutiny. States must regulate elections. They may set registration deadlines, require orderly ballot procedures, prevent fraud, manage polling places, and structure election administration. Reasonable, nondiscriminatory election regulations are often evaluated through a balancing approach that considers the burden on voters and the state’s regulatory interests.

One person, one vote principles require substantial equality in voting power for many legislative districts. The basic idea is that votes should not be diluted by severe population disparities among districts. Districting questions may also raise racial classification, vote dilution, or political-process concerns depending on the facts.

Ballot access rules, candidate qualifications, voter-identification requirements, and districting regulations require careful analysis. The key is the severity of the burden. A minor administrative rule is different from a law that excludes a class of voters or makes voting practically impossible.

XII. Right to Interstate Travel

The right to interstate travel is fundamental. Government may not penalize people for moving from one state to another. This right protects the ability to enter and leave states, to be treated as a welcome visitor, and to become a resident of another state on equal terms.

Durational residency requirements are a common issue. A state may require bona fide residency for certain benefits or participation in state programs. But a law that penalizes recent arrivals by denying essential benefits or voting rights for an extended period may be unconstitutional.

The distinction is between verifying residency and punishing migration. A state may ask whether someone actually lives there. It may not treat new residents as inferior because they recently exercised the right to move.

XIII. Education

Education is enormously important, but it is not generally treated as a fundamental right under the federal Constitution. That is a classic exam trap.

A state law involving education may still violate equal protection if it uses a suspect classification such as race or national origin. It may also be challenged under state constitutional provisions, which sometimes provide stronger education rights. But under federal equal protection doctrine, education itself is not ordinarily a fundamental right triggering strict scrutiny.

This distinction matters. A law creating unequal educational funding may be troubling as policy, but unless it uses a suspect classification or burdens a recognized fundamental right, federal equal protection review may be deferential.

XIV. Wealth

Wealth is not a suspect classification under federal equal protection doctrine. Laws that distinguish based on poverty or economic status usually receive rational basis review.

However, wealth may matter in certain contexts. The government may not use inability to pay to deny meaningful access to essential criminal appellate procedures in ways that affect fairness of the criminal process. Court access, criminal justice, and fundamental rights can complicate the analysis.

The exam point is to avoid overstatement. Poverty alone is not suspect. But when poverty interacts with voting, criminal appeals, access to courts, or other important rights, special doctrine may apply.

XV Discriminatory Administration & Selective Prosecution

A law neutral on its face may violate equal protection if administered in a discriminatory way. For example, if a licensing ordinance applies to everyone but officials enforce it only against one racial group because of race, equal protection is implicated.

Selective prosecution claims are difficult. A defendant usually must show that similarly situated persons were not prosecuted and that the prosecution was based on an impermissible consideration such as race, religion, or the exercise of constitutional rights. Mere uneven enforcement is not enough. Prosecutors have discretion, and courts are cautious about second-guessing charging decisions without strong evidence of discriminatory purpose.

Discriminatory administration is important because equal protection governs both the text of law and the way law is applied. A neutral rule cannot be used as a cover for unconstitutional discrimination.

XVI. Application and Analysis

Consider a state statute providing that only citizens may become public-school teachers. A lawful permanent resident challenges the law.

Begin by identifying the classification. The law classifies based on alienage. Because it is a state law burdening lawful resident aliens, strict scrutiny may apply unless the political-function exception covers the position.

The state will argue that public-school teachers perform a role related to civic development and democratic values. The challenger will argue that teaching is an ordinary profession and that excluding lawful resident aliens from an entire occupation is too broad. The result may depend on how the doctrine treats the specific role and the degree to which the position involves policymaking, discretion, or democratic self-government.

Now consider a law requiring police officers to be citizens. The state’s political-function argument is stronger because police officers exercise coercive sovereign authority and enforce public law. A citizenship requirement may be more defensible in that setting.

Now consider a federal law distinguishing between citizens and noncitizens for immigration benefits. Federal power over immigration and naturalization means the classification is likely reviewed more deferentially than a similar state law.

XVII. Bar-Style Analysis Notes

A strong equal protection essay should be organized around the classification.

1. Identify the government actor and confirm state action. If the defendant is private, explain why equal protection applies or does not apply.
2. Identify the classification. State exactly who is treated differently. Avoid vague phrases like “this is unfair.” Equal protection requires a line: men versus women, residents versus new residents, citizens versus noncitizens, adults versus minors, in-state versus out-of-state citizens, or one racial group versus another.
3. Determine whether the classification is facial, purposeful, or merely disparate in impact. If the law is facially neutral, discuss discriminatory intent if the facts support it.
4. Choose the level of scrutiny. Race and national origin usually receive strict scrutiny. State alienage classifications involving lawful resident aliens often receive strict scrutiny, subject to exceptions. Sex and legitimacy receive intermediate scrutiny. Age, disability, poverty, and economic status usually receive rational basis review. Severe burdens on voting or travel may trigger heightened scrutiny.
5. Apply the standard. For strict scrutiny, discuss compelling interest and narrow tailoring. For intermediate scrutiny, discuss important objective and substantial relationship. For rational basis, discuss legitimate interest and rational relationship.
6. Evaluate fit. Is the law overinclusive because it burdens more people than necessary? Is it underinclusive because it leaves out similar problems? Are there less discriminatory alternatives? Does the law rest on stereotypes or animus?
7. Conclude. Equal protection conclusions should connect the classification, scrutiny, and fit.