Partial-Birth Abortion: Federal Ban, Penalties, and Exceptions

The federal partial-birth abortion ban is a criminal law, codified at 18 U.S.C. § 1531, that prohibits a specific late-term abortion method throughout the United States. A physician who knowingly performs the banned procedure faces a fine, up to two years in federal prison, or both. The Supreme Court upheld the law in 2007, and the 2022 Dobbs decision has only strengthened its legal footing.¹

What the Law Actually Prohibits

“Partial-birth abortion” is not a medical term. Physicians call the targeted procedure intact dilation and extraction, or intact D&X. The statute created its own legal definition that turns on specific physical landmarks during delivery, not on gestational age.

The banned procedure occurs when a physician deliberately delivers a living fetus vaginally past one of two anatomical thresholds: the entire head, in a head-first delivery, or any portion of the torso past the navel, in a feet-first delivery. The physician then performs a separate act, short of completing the delivery, that kills the fetus. Both elements must be present: the partial delivery past those landmarks, and a deliberate killing act afterward. A delivery that simply results in a stillbirth, or a standard delivery gone wrong, does not meet the statutory definition.¹

The law reaches licensed physicians and also anyone else who directly performs the procedure. The statute’s definition of “physician” sweeps broadly enough to prevent unlicensed individuals from escaping liability by arguing the law targets only doctors.¹

The Only Exception: Saving the Mother’s Life

The statute carves out one narrow exception. The ban does not apply when the procedure is necessary to save the life of a mother whose life is endangered by a physical disorder, physical illness, or physical injury, including a life-threatening condition caused by or arising from the pregnancy itself.¹

The law conspicuously omits a health exception. Even when a physician believes the intact D&X is the safest available method for a particular patient, the procedure remains illegal unless the mother’s life is at stake. Congress included legislative findings asserting that the procedure is never medically necessary, and the Supreme Court accepted that conclusion in Gonzales v. Carhart. The distinction between a life-threatening emergency and a serious health risk is where the law draws its hardest line.

The statute does not further define what qualifies as a “physical disorder” or “physical injury.” That vagueness puts physicians in a difficult position: they must judge in real time whether a patient’s condition has crossed from grave health risk to genuine threat of death before the exception applies.

Criminal Penalties and Who Can Be Prosecuted

A physician convicted under the statute faces a fine, imprisonment for up to two years, or both.¹

The woman who receives the procedure is completely shielded from criminal liability. The statute explicitly provides that she cannot be prosecuted for the underlying offense, for conspiracy to violate the ban, or for aiding and abetting. This protection is absolute and applies regardless of whether she requested or arranged the procedure.¹

Beyond the federal sentence, a conviction would almost certainly trigger state medical licensing consequences. A felony conviction or an abortion-related violation is grounds for license revocation in most states, and losing a license in one state can trigger revocation or denial in others.

Civil Lawsuits by Family Members

The statute also creates a private right of action. Certain family members may sue the physician who performed the banned procedure:

The father, if he was married to the mother at the time the procedure was performed.
The maternal grandparents, if the mother was under 18 at the time of the procedure.

Available damages include compensation for all psychological and physical injuries caused by the violation, plus statutory damages equal to three times the cost of the procedure.¹

Two restrictions limit the civil action. No suit is permitted if the pregnancy resulted from the plaintiff’s own criminal conduct, and no suit is permitted if the plaintiff consented to the abortion. These provisions prevent, for example, a husband who pressured his wife into the procedure from later suing the physician for performing it.¹

Medical Board Hearing Before Trial

The statute includes an unusual procedural option. Before trial, an accused physician may request a hearing before the State Medical Board to determine whether the procedure was genuinely necessary to save the mother’s life. The board’s findings on that question are admissible as evidence at trial, and the court must delay the start of the criminal proceeding for up to 30 days to allow the hearing to take place.¹

A favorable board finding would not guarantee acquittal, but it would give the defense strong evidence for the life-of-the-mother exception before a jury ever hears the case.

How the Standard D&E Stays Legal

The legal line between a lawful abortion and a federal crime can come down to the specific technique used. Standard dilation and evacuation (D&E) remains the most common method for second-trimester abortions and is not covered by the ban. In a standard D&E, the physician removes the fetus in parts without delivering it intact past the anatomical landmarks the statute specifies. The banned procedure involves partially delivering the fetus intact before performing the killing act.

The statute’s intent requirement does most of the work in keeping ordinary D&E procedures outside the ban’s reach. The law requires that the physician “deliberately and intentionally” deliver the fetus past the anatomical landmarks for the purpose of performing the killing act. An unintended partial delivery during a standard D&E does not satisfy the definition.¹

A physician who sets out to perform a standard D&E and encounters unexpected complications leading to partial delivery has not committed the prohibited act, because the delivery past the landmarks was not deliberate and purposeful. Congress drafted the statute this way to address the overbreadth problem that had doomed an earlier Nebraska ban in Stenberg v. Carhart.

Why the Ban Still Stands After Dobbs

The Supreme Court upheld the federal ban in Gonzales v. Carhart in 2007, splitting 5–4. The majority concluded the statutory definition was narrow enough to target only the intact D&X, so physicians performing standard D&E abortions need not fear prosecution. On the missing health exception, the Court held that Congress had authority to resolve the medical disagreement by finding the procedure unnecessary. Requiring a health exception whenever any medical uncertainty existed would impose “too exacting a standard” on legislative power to regulate the medical profession.²

Gonzales was decided when Roe v. Wade and Planned Parenthood v. Casey still guaranteed a constitutional right to abortion, and the Court applied the “undue burden” standard. In 2022, Dobbs v. Jackson Women’s Health Organization eliminated the constitutional right to abortion entirely, holding that the authority to regulate abortion belongs to elected legislators rather than the courts.³

Under Dobbs, laws restricting abortion are now evaluated under rational-basis review, meaning a regulation need only bear a rational relationship to a legitimate government interest. The federal ban cleared the higher undue-burden hurdle in 2007; it clears rational-basis review with room to spare. Any future facial challenge to the Partial-Birth Abortion Ban Act would face an even steeper climb than the one that failed in Gonzales.³

1
Office of the Law Revision Counsel. 18 U.S. Code 1531 – Partial-Birth Abortions Prohibited
2
Cornell Law Institute. Gonzales v. Carhart – Syllabus
3
Supreme Court of the United States. Dobbs v. Jackson Women’s Health Organization (No. 19-1392)