Employment · Primary-source case analysis

UAW v. Johnson Controls: Fetal-Protection Policy Was Facially Discriminatory

By Aneeta Mishra and Timothy Chan

Published September 24, 2026

Decision: International Union, UAW v. Johnson Controls, Inc., 499 U.S. 187 (1991).

International Union, UAW v. Johnson Controls, Inc., 499 U.S. 187 (1991), held that a battery manufacturer’s policy excluding women capable of bearing children from lead-exposed jobs was facial sex discrimination under Title VII and the Pregnancy Discrimination Act. Because reproductive capacity did not prevent women from performing battery-manufacturing work, the policy could not satisfy Title VII’s narrow bona fide occupational qualification defense.

Johnson Controls used lead in manufacturing batteries. Lead exposure can affect reproductive health, including fetal health. The company first warned employees about those risks and required women seeking certain work to acknowledge them. In 1982, it moved from warning to exclusion: women who were pregnant or capable of bearing children could not hold jobs involving actual or potential lead exposure above the company’s threshold unless infertility was medically documented.

From warnings to a sex-specific exclusion

The policy had concrete employment consequences. The plaintiffs included a worker who underwent sterilization to avoid losing her job, a worker transferred from a higher-paying position, and a male employee denied leave to reduce his lead level before trying to become a father. The union and affected employees brought a certified class action alleging sex discrimination under Title VII, as amended by the Pregnancy Discrimination Act.

The record did not show that fertile women were unable to manufacture batteries. It did show that the company treated fertile men and women differently even though lead could affect male reproductive health. That distinction mattered because Title VII analysis turns first on the classification the employer actually adopted, not solely on whether the employer asserted a protective motive.

The lower courts used the wrong framework

The district court granted summary judgment to Johnson Controls using a three-part business-necessity analysis drawn from other fetal-protection cases. The Seventh Circuit, sitting en banc, affirmed. It reasoned that the risk to a fetus was substantial, treated the evidence of paternal exposure as unconvincing, and concluded that the plaintiffs had not shown a less discriminatory alternative. The court also said the policy could qualify as a BFOQ because industrial safety was part of the business.

The Supreme Court rejected that analytical path. Business necessity is associated with facially neutral practices challenged for disparate impact. Johnson Controls’ policy was not neutral: its terms denied fertile women a choice afforded to fertile men. The company’s assertedly benign purpose did not change the policy’s express sex classification. The relevant defense was therefore the much narrower statutory BFOQ exception.

Facial discrimination required the narrow BFOQ defense

Title VII permits a sex-based qualification only in certain instances when it is reasonably necessary to the normal operation of the particular business. The Court read each limiting word seriously and emphasized that an “occupational” qualification must concern the ability to perform the job. Its earlier safety cases involved a close connection between the employee’s sex or age, performance of essential duties, and the safety of people central to the enterprise.

That connection was missing here. The safety concern was real, but reproductive capacity did not interfere with making batteries. The Pregnancy Discrimination Act reinforced the point by requiring workers affected by pregnancy or related conditions to be treated the same as others similar in their ability or inability to work.

The Court placed the choice with workers and families: “Decisions about the welfare of future children must be left to the parents who conceive, bear, support, and raise them rather than to the employers who hire those parents.” Johnson Controls, 499 U.S. at 206.

Safety, tort exposure, and arguments the Court rejected

Johnson Controls argued that its policy protected future children and reduced potential tort exposure. The Court did not minimize the hazard, but it rejected sex exclusion as the legal response. OSHA had adopted exposure controls rather than excluding all women capable of pregnancy. The Court also reasoned that an employer complying with safety obligations, warning workers, and avoiding negligence had not shown the crippling liability necessary to justify a sex-specific bar.

Cost did not supply a defense either. Title VII does not allow an employer to refuse to hire one sex because equal employment might cost more. Nor could concern for third parties expand the BFOQ beyond job performance and the essence of the business. Unconceived children of employees were not customers whose safety constituted the central mission of battery manufacturing.

Disposition, limits, and later-law caution

The Court reversed the Seventh Circuit’s judgment and remanded. Justice White, joined by Chief Justice Rehnquist and Justice Kennedy, concurred in part and in the judgment but would have allowed a somewhat broader BFOQ inquiry into substantial tort liability. Justice Scalia concurred in the judgment and disputed portions of the majority’s statutory reasoning. The governing judgment nevertheless rejected this policy.

The decision does not eliminate neutral exposure controls, workplace-safety duties, or individualized obligations under later law. It also does not decide every accommodation question. Current analysis should separately account for OSHA rules, Title VII as currently interpreted, and statutes enacted after 1991, including the Pregnant Workers Fairness Act. The case’s durable lesson is narrower: an employer generally cannot reserve hazardous work for men by treating female reproductive capacity itself as a disqualifying occupational trait.

What this means in practice

• Identify whether a policy uses sex, pregnancy, fertility, or reproductive capacity on its face; protective language does not make an express classification neutral.
• Separate a neutral safety rule from a sex-specific exclusion and test any asserted BFOQ against actual ability to perform essential job duties.
• Use exposure controls, notice, training, protective equipment, and other lawful safety measures consistently across workers rather than assuming reproductive decisions for them.
• Preserve the policy text, affected job bids or transfers, medical-document demands, pay effects, safety evidence, and the employer’s stated justification.

Related reading: Employment litigation practice; Pregnancy Disability Leave and CFRA guide; Newport News pregnancy-benefit analysis.