Order Code RL30415
CRS Report for Congress
Received through the CRS Web
Partial-Birth Abortion:
Recent Developments in the Law
Updated October 26, 2004
Jon O. Shimabukuro
Legislative Attorney
American Law Division
Congressional Research Service ˜ The Library of Congress

Partial-Birth Abortion:
Recent Developments in the Law
Summary
The term “partial-birth abortion” refers to a method of abortion called “dilation
and extraction” or “D & X” by the medical community. D & X involves the
extraction, from the uterus and into the vagina, of all of the body of a fetus except the
head. Once the body of the fetus is in the vagina, the contents of the skull are
suctioned and the intact fetus is removed from the woman’s body.
Since 1995, at least thirty-one states have enacted laws banning partial-birth
abortions. Although many of these laws have not taken effect because of temporary
or permanent injunctions, they remain contentious to both pro-life advocates and
those who support a woman’s right to choose. This report focuses on the U.S.
Supreme Court’s decision in Stenberg v. Carhart, a case involving the
constitutionality of Nebraska’s partial-birth abortion ban statute. In Stenberg, the
Court invalidated the Nebraska statute because it lacked an exception for the
performance of the D & X procedure when necessary to protect the health of the
mother, and because it imposed an undue burden on a woman’s ability to have an
abortion.
This report also discusses various legislative attempts to restrict partial-birth
abortions during the 106th, 107th, and 108th Congresses. S. 3, the Partial-Birth
Abortion Ban Act of 2003, was signed by the President on November 4, 2003.
Although the Court has held that restrictions on abortion must allow for the
performance of an abortion when it is necessary to protect the health of the mother,
the act does not include such an exception. The act has been challenged in three
separate lawsuits. Federal district courts in all three cases have concluded that the
act is unconstitutional.

Contents
Background . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 1
Stenberg v. Carhart . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
Federal Proposals to Ban Partial-Birth Abortion . . . . . . . . . . . . . . . . . . . . . . 6
106th Congress . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
107th Congress . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
108th Congress . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7

Partial-Birth Abortion:
Recent Developments in the Law
Since 1995, at least thirty-one states have enacted laws banning so-called
partial-birth abortions. Although many of these laws have not taken effect because
of temporary or permanent injunctions, they remain contentious to both pro-life
advocates and those who support a woman’s right to choose.1 The concern over
partial-birth abortions has been shared by Congress. Congress passed bans on
partial-birth abortions in both the 104th and 105th Congresses.2 Unable to overcome
presidential vetoes during both Congressional terms, the Partial-Birth Abortion Ban
Act has been reintroduced in each successive Congress. In October 2003, Congress
approved S. 3, the Partial-Birth Abortion Ban Act of 2003. The measure was signed
by the President on November 5, 2003.
The U.S. Supreme Court has also addressed the performance of partial-birth
abortions. In June 2000, the Court invalidated a Nebraska statute that prohibited the
performance of such abortions. Prior to this decision, the U.S. Courts of Appeals
remained divided on the legitimacy of state statutes banning partial-birth abortions.3
This report will discuss the Supreme Court’s decision in Stenberg v. Carhart, as well
as the partial-birth legislation in the 106th, 107th, and 108th Congresses.
Background
The Supreme Court has held that a woman has a constitutional right to choose
whether to terminate her pregnancy.4 Although a state cannot prohibit a woman from
having an abortion, it can promote its interest in potential human life by regulating,
and even proscribing, abortion after fetal viability so long as it allows an exception
for abortions that are necessary for the preservation of the life or health of the
1 See Center for Reproductive Rights, “Partial-Birth” Abortion Ban Legislation: By State,
at [http://www.crlp.org/st_law_pba.html] (last visited Jan. 12, 2004).
2 H.R. 1833, 104th Cong. (1995); H.R. 1122, 105th Cong. (1997).
3 See Richmond Medical Center for Women v. Gilmore, 144 F.3d 326 (4th Cir. 1998)
(Virginia Partial Birth Abortion Act is not unconstitutionally vague because it cannot
“reasonably be read” to prohibit the D & E procedure); Hope Clinic v. Ryan, 195 F.3d 857
(7th Cir. 1999) (Illinois and Wisconsin statutes prohibiting partial-birth abortion are not
unconstitutionally vague); Women’s Medical Professional Corporation v. Voinovich, 130
F.3d 187 (6th Cir. 1997), cert. denied, 523 U.S. 1036 (1998) (Ohio statute banning partial-
birth abortion imposes an undue burden on the ability to have an abortion because it restricts
both the D & X and D & E procedures).
4 Roe v. Wade, 410 U.S. 113 (1973). See also CRS Issue Brief IB95095, Abortion:
Legislative Response
.

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mother.5 In Planned Parenthood of Southeastern Pennsylvania v. Casey, the Court
expanded a state’s authority to regulate abortion by permitting regulation at the pre-
viability stage so long as such regulation does not place an “undue burden” on a
woman’s ability to have an abortion.6
The term “partial-birth abortion” refers to a method of abortion commonly
called “dilation and extraction” or “D & X” by the medical community. D & X
involves the “extraction, from the uterus and into the vagina, of all of the body of a
fetus except the head, following which the fetus is killed by extracting the contents
of the skull.”7 Once the skull is emptied, the intact fetus is removed from the
woman’s body. D & X is one of several methods of performing abortions. The
principal methods of abortion are suction curettage, induction, and dilation and
evacuation (“D & E”).8
The decision to perform one abortion method over another usually depends on
the gestational age of the fetus. During the first trimester, the most common method
of abortion is suction curettage.9 Suction curettage involves the evacuation of the
uterine cavity by suction. The embryo or fetus is separated from the placenta either
by scraping or vacuum pressure before being removed by suction. Induction may be
performed either early in the pregnancy or in the second trimester. In this procedure,
the fetus is forced from the uterus by inducing preterm labor. D & E is the most
common method of abortion in the second trimester.10 Suction curettage is no longer
viable because the fetus is too large in the second trimester to remove by suction
alone. D & E involves the dilation of the cervix and the dismemberment of the fetus
inside the uterus. Fetal parts are later removed from the uterus either with forceps
or by suction. D & X is typically performed late in the second trimester between the
twentieth and twenty-fourth weeks of pregnancy. Although the medical advantages
of D & X have been asserted, the nature of the procedure has prompted pro-life
advocates to characterize D & X as something akin to infanticide.11
In Women’s Medical Professional Corporation v. Voinovich, the U.S. Court of
Appeals for the Sixth Circuit discussed the differences between the D & E and D &
X procedures in reference to an Ohio act that banned partial-birth abortions:
The primary distinction between the two procedures is that the D & E procedure
results in a dismembered fetus while the D & X procedure results in a relatively
intact fetus. More specifically, the D & E procedure involves dismembering the
fetus in utero before compressing the skull by means of suction, while the D &
5 Roe, 410 U.S. at 164-65.
6 505 U.S. 833 (1992).
7 Carhart v. Stenberg, 192 F.3d 1142, 1145 (8th Cir. 1999). See also CRS Report 95-1101,
Abortion Procedures.
8 See Hope Clinic, 195 F.3d at 861.
9 See Voinovich, 130 F.3d at 198.
10 Id.
11 Hope Clinic, 195 F.3d at 883.

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X procedure involves removing intact all but the head of the fetus from the uterus
and then compressing the skull by means of suction. In both procedures, the fetal
head must be compressed, because it is usually too large to pass through a
woman’s dilated cervix. In the D & E procedure, this is typically accomplished
by either suctioning the intracranial matter or by crushing the skull, while in the
D & X procedure it is always accomplished by suctioning the intracranial
matter.12
The procedural similarities between the D & E and D & X procedures have
contributed to the concern that the language of partial-birth abortion bans may
prohibit both methods of abortion.
Plaintiffs challenging partial-birth abortion statutes have generally sought the
invalidation of such statutes on the basis of two arguments: first, that the statutes are
unconstitutionally vague, and second, that the statutes are unconstitutional because
they impose an undue burden on a woman’s ability to obtain an abortion. The
Supreme Court has held that an enactment is void for vagueness if its prohibitions
are not clearly defined.13 Vague laws are found unconstitutional because they fail to
give people of ordinary intelligence a reasonable opportunity to know what is
prohibited and thus allow them to act lawfully.14 Moreover, the inability to provide
explicit standards is feared to result in the arbitrary and discriminatory enforcement
of a statute.
The undue burden standard was first discussed by the Court in Casey. In that
case, the Court held that a state could enact abortion regulations at the pre-viability
stage so long as an “undue burden” is not placed on a woman’s ability to have an
abortion. Any regulation which “has the purpose or effect of placing a substantial
obstacle in the path of a woman seeking an abortion” creates an undue burden and
is invalid.15
The Sixth Circuit was the first to consider whether a ban on partial-birth
abortions imposes an undue burden on a woman’s ability to have an abortion. In
Voinovich, the court found that an Ohio statute that attempted to ban the D & X
procedure was unconstitutional under Casey. The court determined that the language
of the statute targeted the D & X procedure, but encompassed the D & E procedure.
Because the D & E procedure is the most common method of second trimester
abortions, the court contended that the statute created an undue burden on women
seeking abortions at this point in their pregnancies.
12 Voinovich, 130 F.3d at 199.
13 See Grayned v. City of Rockford, 408 U.S. 104 (1972).
14 Id.
15 Casey, 505 U.S. at 877.

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Stenberg v. Carhart
In Stenberg v. Carhart, a Nebraska physician who performed abortions at a
specialized abortion facility sought a declaration that Nebraska’s partial-birth
abortion ban statute violated the U.S. Constitution.16 The Nebraska statute provided:
No partial birth abortion shall be performed in this state, unless such procedure
is necessary to save the life of the mother whose life is endangered by a physical
disorder, physical illness, or physical injury, including a life-endangering
physical condition caused by or arising from the pregnancy itself.17
The term “partial birth abortion” was defined by the statute as “an abortion procedure
in which the person performing the abortion partially delivers vaginally a living
unborn child before killing the unborn child and completing the delivery.”18 The
term “partially delivers vaginally a living unborn child before killing the unborn
child” was further defined as “deliberately and intentionally delivering into the
vagina a living unborn child, or a substantial portion thereof, for the purpose of
performing a procedure that the person performing such procedure knows will kill
the unborn child and does kill the unborn child.”19 Violation of the statute carried a
prison term of up to twenty years and a fine of up to $25,000. In addition, a doctor
who violated the statute was subject to the automatic revocation of his license to
practice medicine in Nebraska.
Among his arguments, Dr. Carhart maintained that the meaning of the term
“substantial portion” in the Nebraska statute was unclear and thus, could include the
common D & E procedure in its ban of partial-birth abortions. Because the Nebraska
legislature failed to provide a definition for “substantial portion,” the U.S. Court of
Appeals for the Eighth Circuit interpreted the Nebraska statute to proscribe both the
D & X and D & E procedures: “if ‘substantial portion’ means an arm or a leg - and
surely it must - then the ban . . . encompasses both the D & E and the D & X
procedures.”20 The Eighth Circuit acknowledged that during the D & E procedure,
the physician often inserts his forceps into the uterus, grasps a part of the living fetus,
and pulls that part of the fetus into the vagina. Because the arm or leg is the most
common part to be retrieved, the physician would violate the statute.21
The state argued that the statute’s scienter or knowledge requirement limited its
scope and made it applicable only to the D & X procedure. According to the state,
the statute applied only to the deliberate and intentional performance of a partial birth
abortion; that is, the partial delivery of a living fetus vaginally, the killing of the
16 Stenberg v. Carhart, 530 U.S. 914, 120 S.Ct. 2597 (2000).
17 Neb. Rev. Stat. § 28-328(1).
18 Neb. Rev. Stat. § 28-326(9).
19 Id.
20 Carhart, 192 F.3d at 1150.
21 Id.

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fetus, and the completion of the delivery.22 However, the Eighth Circuit found that
the D & E procedure involves all of the same steps: “The physician intentionally
brings a substantial part of the fetus into the vagina, dismembers the fetus, leading
to fetal demise, and completes the delivery. A physician need not set out with the
intent to perform a D & X procedure in order to violate the statute.”23
The Supreme Court affirmed the Eighth Circuit’s decision by a 5-4 margin. The
Court based its decision on two determinations. First, the Court concluded that the
Nebraska statute lacked any exception for the preservation of the health of the
mother. Second, the Court found that the statute imposed an undue burden on the
right to choose abortion because its language covered more than the D & X
procedure.
Despite the Court’s previous instructions in Roe and Casey, that abortion
regulation must include an exception where it is “necessary, in appropriate medical
judgment, for the preservation of the life or health of the mother,” the state argued
that Nebraska’s partial-birth abortion statute did not require a health exception
because safe alternatives remained available to women, and a ban on partial-birth
abortions would create no risk to the health of women.24 Although the Court
conceded that the actual need for the D & X procedure was uncertain, it recognized
that the procedure could be safer in certain circumstances.25 Thus, the Court stated,
“a statute that altogether forbids D & X creates a significant health risk . . . [t]he
statute consequently must contain a health exception.”26
In its discussion of the undue burden that would be imposed if the Nebraska
statute was upheld, the Court maintained that the plain language of the statute
covered both the D & X and D & E procedures.27 Although the Nebraska State
Attorney General offered an interpretation of the statute that differentiated between
the two procedures, the Court was reluctant to recognize such a view. Because the
Court traditionally follows lower federal court interpretations of state law and
because the Attorney General’s interpretative views would not bind state courts, the
Court held that the statute’s reference to the delivery of “a living unborn child, or a
substantial portion thereof” implicated both the D & X and D & E procedures.28
Because the Stenberg Court was divided by only one member, Justice
O’Connor’s concurrence has raised concern among those who support a woman’s
right to choose. Justice O’Connor’s concurrence indicated that a state statute
prohibiting partial-birth abortions would likely withstand a constitutional challenge
if it includes an exception for situations where the health of the mother is at issue,
22 Id.
23 Id.
24 Stenberg, 120 S.Ct. at 2610 (quoting Roe, 410 U.S. at 164-65).
25 Stenberg, 120 S.Ct. at 2613.
26 Id.
27 Stenberg, 120 S.Ct. at 2614.
28 Stenberg, 120 S.Ct. at 2616.

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and if it is “narrowly tailored to proscribing the D & X procedure alone.”29 Justice
O’Connor identified Kansas, Utah, and Montana as having partial-birth abortion
statutes that differentiate appropriately between D & X and the other procedures.30
Justice O’Connor’s identification of these state statutes suggests her willingness to
find partial-birth legislation constitutional if it meets the required criteria.
Federal Proposals to Ban Partial-Birth Abortion
106th Congress. The Partial-Birth Abortion Ban Act of 1999, S. 1692, was
introduced by Senator Rick Santorum on October 5, 1999. The bill was approved by
the Senate on October 21, 1999 by a vote of 63-34. H.R. 3660, the Partial-Birth
Abortion Ban Act of 2000, was introduced by Representative Charles T. Canady on
February 15, 2000. H.R. 3660 was passed by the House on April 5, 2000 by a vote
of 287-141. On May 25, 2000, the House passed S. 1692 without objection after
striking its language and inserting the provisions of H.R. 3660. House conferrees
were subsequently appointed, but no further action was taken.
Both S. 1692 and H.R. 3660 would have imposed a fine and/or imprisonment
not to exceed two years for any physician who knowingly performed a partial-birth
abortion. Partial-birth abortion was defined as an abortion in which a person
“deliberately and intentionally . . . vaginally delivers some portion of an intact living
fetus until the fetus is partially outside the body of the mother, for the purpose of
performing an overt act that the person knows will kill the fetus” and actually
performs the overt act that kills the fetus.31 In addition to criminal penalties, S. 1692
and H.R. 3660 provided a private right of action for “[t]he father, if married to the
mother at the time she receives a partial-birth abortion procedure, and if the mother
has not attained the age of 18 years at the time of the abortion, the maternal
grandparents of the fetus . . . unless the pregnancy resulted from the plaintiff’s
criminal conduct or the plaintiff consented to the abortion.”32
When President Clinton vetoed a similar partial-birth abortion bill, H.R. 1122,
during the 105th Congress, he focused on the bill’s failure to include an exception to
the ban that would permit partial-birth abortions to protect “the lives and health of
the small group of women in tragic circumstances who need an abortion performed
at a late stage of pregnancy to avert death or serious injury.”33 While S. 1692 and
H.R. 3660 would have allowed a partial-birth abortion to be performed when it was
29 Stenberg, 120 S.Ct. at 2619. See also Stenberg, 120 S.Ct. at 2620 (“If there were adequate
alternative methods for a woman safely to obtain an abortion before viability, it is unlikely
that prohibiting the D & X procedure alone would ‘amount in practical terms to a substantial
obstacle to a woman seeking an abortion’ [citation omitted] . . . Thus, a ban on partial-birth
abortion that only proscribed the D & X method of abortion and that included an exception
to preserve the life and health of the mother would be constitutional in my view.”).
30 See Stenberg, 120 S.Ct. at 2619.
31 S. 1692, 106th Cong. (1999); H.R. 3660, 106th Cong. (2000).
32 Id.
33 Message to the House of Representatives Returning Without Approval Partial Birth
Abortion Legislation, 33 Weekly Comp. Pres. Doc. 41 (Oct. 13, 1997).

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necessary to save the life of the mother, such an abortion would not have been
available when it was simply medically preferable to another procedure.
107th Congress. H.R. 4965, the Partial-Birth Abortion Ban Act of 2002, was
introduced by Representative Steve Chabot on June 19, 2002. The bill was passed
by the House on July 24, 2002 by a vote of 274-151. The measure was not
considered by the Senate. H.R. 4965 would have prohibited physicians from
performing a partial-birth abortion except when it was necessary to save the life of
a mother whose life was endangered by a physical disorder, physical illness, or
physical injury, including a life-endangering physical condition caused by or arising
from the pregnancy itself. The bill defined the term “partial-birth abortion” to mean
an abortion in which “the person performing the abortion deliberately and
intentionally vaginally delivers a living fetus until, in the case of a head-first
presentation, the entire fetal head is outside the body of the mother, or, in the case of
breech presentation, any part of the fetal trunk past the navel is outside the body of
the mother for the purpose of performing an overt act that the person knows will kill
the partially delivered living fetus.”34 Physicians who violated the act would have
been subject to a fine, imprisonment for not more than two years, or both.
Although H.R. 4965 did not provide an exception for the performance of a
partial-birth abortion when the health of the mother was at issue, supporters of the
measure maintained that the bill was constitutional. They contended that
congressional hearings and fact finding revealed that a partial-birth abortion is never
necessary to preserve the health of a woman, and that such an abortion poses serious
risks to a woman’s health.
108th Congress. S. 3, the Partial-Birth Abortion Ban Act of 2003, was signed
by the President on November 5, 2003. The House approved H.Rept. 108-288, the
conference report for the measure, on October 2, 2003 by a vote of 281-142. The
Senate agreed to the conference report on October 21, 2003 by a vote of 64-34.
In general, S. 3 resembles the Partial-Birth Abortion Ban Act of 2002 in
language and form. The act prohibits physicians from performing a partial-birth
abortion except when it 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-endangering physical condition caused by or arising from the pregnancy itself.
Physicians who violate the act would be subject to a fine, imprisonment for not more
than two years, or both.
Although the Supreme Court has held that restrictions on abortion must allow
for the performance of an abortion when it is necessary to protect the health of the
mother, the act does not include such an exception. In his introductory statement on
S. 3, Senator Rick Santorum discussed the act’s lack of a health exception.35 He
maintained that an exception is not necessary because of the risks associated with
partial-birth abortions. Senator Santorum insisted that congressional hearings and
expert testimony demonstrate “that a partial birth abortion is never necessary to
34 H.R. 4965, 107th Cong. § 3 (2002).
35 149 Cong. Rec. S2523 (daily ed. Feb. 14, 2003) (statement of Sen. Santorum).

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preserve the health of the mother, poses significant health risks to the woman, and
is outside the standard of medical care.”36
Within two days of the signing of the act, federal courts in Nebraska, California,
and New York blocked its enforcement.37 Permanent injunctions have since been
issued by three courts. In Planned Parenthood v. Ashcroft, a federal district court in
San Francisco found that the act is unconstitutional because it poses an undue burden
on a woman’s ability to choose a second trimester abortion, is unconstitutionally
vague, and impermissibly lacks an exception for preserving the health of the
mother.38 In National Abortion Federation v. Ashcroft, a federal district court in New
York concluded that the act is unconstitutional based simply on its failure to include
an exception to preserve the health of the mother.39 In discussing the level of
deference owed to Congress’s findings, the court observed that it must ascertain
“whether Congress reasonably determined, based on substantial evidence, that there
is no significant body of medical opinion believing the procedure to have safety
advantages for some women.”40 Given the lack of consensus in the medical
community over whether the D & X procedure is never medically necessary, and
similar uncertainty over the procedure being safer than other procedures for some
women, the court concluded that Congress’s findings were not reasonable and based
on substantial evidence.
Finally, in Carhart v. Ashcroft, a federal district court in Nebraska concluded
that the Partial-Birth Abortion Ban Act of 2003 is unconstitutional for several
reasons: it fails to include a health exception that would allow the so-called “partial-
birth” abortion procedure to be performed to preserve the health of the mother; it
imposes an undue burden on women by banning the D&E or dilation and evacuation
procedure, the most common abortion procedure during the second trimester of
pregnancy, under certain circumstances; and it is unconstitutionally vague.41
Appeals are expected for all of the cases. An appeal to the Supreme Court is also
expected.
36 149 Cong. Rec., at S2523.
37 Abortion Ban Blocked Again, Wash. Post, Nov. 7, 2003, at A2.
38 No. C 03-4872 PJH, slip op. (N.D. Cal. June 1, 2004).
39 No. 03 Civ. 8695 (RCC), slip. op. (S.D. N.Y. Aug. 26, 2004).
40 Id. at 84.
41 No. 4:03CV3385, slip op. (D. Neb. Sept. 8, 2004).