FOR PUBLICATION
  UNITED STATES COURT OF APPEALS
       FOR THE NINTH CIRCUIT

WILSONIS AYALA-VILLANUEVA,                
                        Petitioner,               No. 07-70110
               v.
                                                  Agency No.
                                                  A037-300-465
ERIC H. HOLDER Jr., Attorney
General,                                            OPINION
                      Respondent.
                                          
          On Petition for Review of an Order of the
               Board of Immigration Appeals

                    Submitted June 11, 2009*
                    San Francisco, California

                        Filed July 14, 2009

   Before: Procter Hug, Jr., Betty B. Fletcher and Michael
               Daly Hawkins, Circuit Judges.

                      Opinion by Judge Hug




  *This panel unanimously finds this case suitable for decision without
oral argument. See Fed. R. App. P. 34(a)(2).

                                8837
8840                AYALA-VILLANUEVA v. HOLDER
                             COUNSEL

Leon Rosen, Law Office of Leon Rosen, Las Vegas, Nevada,
for the petitioner.

Richard Zanfardino, Office of Immigration Litigation, Civil
Division, United States Department of Justice, Washington,
District of Columbia, for the respondent.


                              OPINION

HUG, Circuit Judge:

   Wilsonis Ayala-Villanueva (“Ayala”) petitions this court
for review of a final order of removal. Removal proceedings
were initiated on March 7, 2003, when the Department of
Homeland Security (“DHS”)1 issued and served on Ayala a
notice to appear, charging him with removal as an aggravated
felon under 8 U.S.C. § 1227(a)(2)(A)(iii) and 8 U.S.C.
§ 1101(a)(43)(G) (theft offense) based on his conviction for
possession of stolen property in violation of Nevada Revised
Statutes § 205.275. Ayala claims that he is a derivative citizen
and is therefore not removable.2 On three occasions, the
Immigration Judge (“IJ”) terminated the removal proceedings,
concluding that Ayala had presented substantial, credible evi-
dence of his citizenship and that the government had failed to
prove deportability by clear and convincing evidence. Each
time the IJ terminated removal proceedings, the DHS
appealed to the Board of Immigration Appeals (“BIA”). The
  1
     Effective March 1, 2003, the Immigration and Naturalization Service
ceased to exist and its functions were transferred to the DHS. See Home-
land Security Act of 2002, Pub. L. No. 107-296, 116 Stat. 2135 (Nov. 25,
2002).
   2
     Ayala filed a N-600 Application for Certificate of Citizenship on May
15, 2003. The DHS denied his application on July 25, 2003.
                     AYALA-VILLANUEVA v. HOLDER                        8841
BIA sustained each DHS appeal and thrice remanded the mat-
ter to the IJ.

   In her first order, filed December 5, 2003, the IJ concluded
that Ayala had presented sufficient evidence of his derivative
citizenship. The BIA, however, held that the IJ’s citizenship
hearing was insufficient because it was conducted without
prior notice to the parties and involved only limited testimony
from Ayala. On remand, the IJ held extensive hearings and
allowed the parties to substantially develop the evidentiary
record. In her carefully drafted order of October 18, 2005, the
IJ extensively reviewed the documentary evidence and testi-
mony concerning Ayala’s citizenship. Concluding that Ayala
had presented substantial credible evidence in support of his
citizenship claim and that the government had failed to carry
its ultimate burden of proving deportability by clear and con-
vincing evidence,3 the IJ ordered the proceedings terminated.
The BIA again sustained the government’s appeal, concluding
that the IJ’s reliance on Ayala’s “newly discovered” birth cer-
tificate was “clearly erroneous” and that Ayala had failed to
rebut the presumption of alienage by substantial credible evi-
dence.

  In her third order terminating proceedings, the IJ expanded
her analysis of the facts and law and suggested that the gov-
ernment’s evidence supporting alienage had been discredited
by Ayala. Because no new evidence had been submitted on
remand, the BIA sustained the government’s third appeal,
saying that the IJ had “no basis to again terminate the pro-
  3
    In a removal proceeding, the DHS bears the burden of establishing by
clear, unequivocal, and convincing evidence, all facts supporting deporta-
bility. Chau v. INS, 

, 1029 n.5 (9th Cir. 2001) (citing Mur-
phy v. INS, 

, 609-610 (9th Cir. 1995)). Evidence of foreign
birth gives rise to a rebuttable presumption of alienage, shifting the burden
to the alleged citizen to prove citizenship. 

production of sub-
stantial credible evidence in support of his citizenship claim, the presump-
tion of alienage is rebutted. 

then bears the ultimate burden
of proving the respondent removable by clear and convincing evidence. 

v. HOLDER
ceedings.” The BIA instructed the IJ that, on remand, she
“should not reinstate her prior order and not terminate the pro-
ceedings, unless new and substantial evidence is provided
which is sufficient to rebut the presumption of alienage in this
case.” The IJ, “feel[ing] that [she could] do nothing else but
comply” with the BIA’s order, found that Ayala is a native
and citizen of El Salvador and that, because he was convicted
of an aggravated felony, he is removable. Accordingly, the IJ
ordered Ayala removed to El Salvador. The BIA dismissed
Ayala’s appeal, and Ayala now petitions this court for relief.

   [1] This court has jurisdiction to consider Ayala’s national-
ity claim pursuant to 8 U.S.C. § 1252(b)(5). If the “record
presents no genuine issue of material fact about the petition-
er’s nationality, a reviewing court must decide the nationality
claim.” Chau v. INS, 

, 1029 (9th Cir. 2001) (cit-
ing 8 U.S.C. § 1252(b)(5)(A)). If, however, “the record pres-
ents a genuine issue of material fact as to the petitioner’s
nationality, the reviewing court must transfer the proceeding
to a district court for a de novo determination.” 

U.S.C. § 1252(b)(5)(B)).4 Traditional summary judgment
rules guide our decision concerning transfer. 

evidence presented in support of the claim would be sufficient
to entitle a litigant to trial were such evidence presented in
opposition to a motion for summary judgment,” transfer for
a de novo determination of the citizenship claim is statutorily
mandated. 

born out of wedlock in El Salvador on July 28,
1973. On October 23, 1982, when Ayala was nine years old,
he was admitted to the United States as a lawful permanent
  4
   Section 1252(b)(5)(B) provides as follows: “If the petitioner claims to
be a national of the United States and the court of appeals finds that a gen-
uine issue of material fact about the petitioner’s nationality is presented,
the court shall transfer the proceeding to the district court of the United
States for the judicial district in which the petitioner resides for a new
hearing on the nationality claim and a decision on that claim as if an action
had been brought in the district court under section 2201 of Title 28.”
                 AYALA-VILLANUEVA v. HOLDER                      8843
resident. Ayala claims that he became a derivative citizen
through his mother, Maria Dolores Villanueva (“Villanueva”),
when she naturalized on February 19, 1987. “[D]erivative citi-
zenship is determined under the law in effect at the time the
critical events giving rise to eligibility occurred.” Minasyan v.
Gonzales, 

, 1075 (9th Cir. 2005). Former sec-
tion 321(a) of the Immigration and Nationality Act, 8 U.S.C.
§ 1432(a) (repealed 2000), which was in effect at the time of
Villanueva’s naturalization, governs Ayala’s claim to citizen-
ship. The statute provides, in pertinent part, that:

    A child born outside of the United States of alien
    parents . . . becomes a citizen of the United States
    upon fulfillment of the following conditions:

       ...

       (3) The . . . naturalization of the mother if the
    child was born out of wedlock and the paternity of
    the child has not been established by legitimation;
    and if

      (4) Such naturalization takes place while such
    child is under the age of eighteen years; and

       (5) Such child is residing in the United States pur-
    suant to a lawful admission for permanent residence
    at the time of the naturalization of . . . the parent nat-
    uralized under clause . . . (3) of this subsection . . . .

8 U.S.C. § 1432(a). It is uncontested that Ayala meets condi-
tions (4) and (5); he was 13 years old and living in the United
States as a legal permanent resident when his mother natural-
ized. His derivative citizenship thus turns on whether he
meets condition (3).

  Before these proceedings, Ayala had assumed that his
8844               AYALA-VILLANUEVA v. HOLDER
mother’s husband, Jose Humberto Ayala Gaitan (“Humberto”),5
was his father and that his mother and Humberto were mar-
ried at the time of his birth. Villanueva and Humberto, how-
ever, were not married until July 28, 1976, and each birth
certificate included in the administrative record shows that
Ayala was born out of wedlock. Therefore, Ayala is a deriva-
tive citizen if his “paternity . . . has not been established by
legitimation.” See 8 U.S.C. § 1432(a)(3). Humberto’s mar-
riage to Villanueva establishes Ayala’s paternity by legitima-
tion and destroys Ayala’s claim to citizenship only if
Humberto is Ayala’s father. If, however, Humberto is not
Ayala’s father, Ayala’s paternity was never established by
legitimation and he is a derivative citizen.

   The administrative record contains four documents purport-
ing to be copies and translations of Ayala’s birth certificate.
The two birth certificates obtained by Ayala and entered into
the administrative record as exhibits 9 and 12 indicate that
Ayala’s father is not Humberto. According to these docu-
ments, Ayala was born to Jose Tiburcio Ayala Gaitan
(“Tiburcio”), who was a 21-year-old student at the time of
Ayala’s birth. The birth record number shown on these certifi-
cates is 686 and the place of birth is given as Hospital San
Pedro of Usulutan. The government offered two birth certifi-
cates, exhibits 11 and 13, which indicate that Humberto is
Ayala’s father. Humberto is identified as a 26-year-old small
agriculturalist. These two documents give Canton of San
Antonio in Concepcion Batres as the place of Ayala’s birth
and indicate a birth record number of 386. Despite these dif-
ferences, all four birth certificates bear marked similarities.
They are consistent with regard to the date and time of
Ayala’s birth and the identity and description of his mother.
Each certificate also describes Ayala’s father as being from
Estanzualas and having the Personal Cedula Identification
number 519653. Lastly, all of the birth certificates indicate
that they are found on page 349 in the book of births.
  5
   Humberto is a native and citizen of El Salvador.
                 AYALA-VILLANUEVA v. HOLDER                 8845
   The record also includes a certified letter from Marcia
Iraida Martinez Rivera (“Martinez”), Head of Family Registry
for Concepcion Batres, dated July 25, 2003. Both copies of
the birth certificate identifying Humberto as Ayala’s father
indicate they are from the book of births for Concepcion
Batres and bear the certificate number 386. Martinez certified,
however, that the birth certificate identified as exhibit 13 does
not exist in the book of births for Concepcion Batres. She fur-
ther represented that certificate number 386 for the year 1973
actually belongs to Rene Armando Perdomo and is found on
page 198 of the book of births.

   The government submitted a request for overseas investiga-
tion to the officer in San Salvador, but the record does not
contain any results from that investigation. The DHS attorney
represented to the IJ that the original certificate identifying
Humberto as Ayala’s father was destroyed in a fire. There is
no evidence in the record supporting this assertion. The IJ
contrasted this representation with Martinez’s certification
that another name is listed at certificate 386 in the book of
births for Concepcion Batres in 1973 and suggested that
Ayala’s evidence discredited the government’s birth certifi-
cate.

   The government argues that Ayala’s evidence is insuffi-
cient to rebut the presumption of alienage. This court, how-
ever, need not weigh the evidence or determine whether the
BIA applied the appropriate burden. Instead, we need only
determine whether a genuine issue of material fact exists as
to Ayala’s nationality. If such a dispute exists, we must trans-
fer the proceedings to the district court. 8 U.S.C.
§ 1252(b)(5)(B). In the absence of a genuine issue of material
fact, we must decide the nationality claim. § 1252(b)(5)(A).

   As the foregoing discussion makes clear, the evidence as to
Ayala’s paternity is heavily disputed. The administrative
record contains various versions of two conflicting records of
Ayala’s birth: one identifies Jose Humberto Ayala Gaitan, a
8846              AYALA-VILLANUEVA v. HOLDER
26-year-old agriculturalist, as Ayala’s father; and the other
names Jose Tiburcio Ayala Gaitan, a 21-year-old student, as
his father. The legitimacy of the birth certificates relied on by
the government are called into question by Martinez’s certifi-
cation that the birth certificate listing Humberto as the father
“does not exist in the book of births for the year of 1973” and
that there is also no such certificate in the birth records for the
years 1974 and 1975.

   [2] Based on the foregoing, we find that there is a genuine
factual dispute concerning the identity of Ayala’s father and
that the resolution of this factual dispute will determine
whether or not Ayala acquired derivative citizenship. Accord-
ingly, we transfer the proceedings to the United States District
Court for the District of Nevada “for a new hearing on [his]
nationality claim and a decision on that claim as if an action
had been brought” for declaratory relief under 28 U.S.C.
§ 2201. 8 U.S.C. § 1252(b)(5)(B); see 

. We do not reach the remaining issues raised in Ayala’s
petition for review at this time and hold the petition in abey-
ance pending a judicial determination of Ayala’s citizenship
claim. 

.

 MATTER TRANSFERRED TO DISTRICT COURT
OF NEVADA; PETITION FOR REVIEW HELD IN
ABEYANCE.