QUESTION
               You asked whether Zachary (C1) and Terri (C2) are entitled to child survivor’s benefits
                  as the children of the deceased wage earner (DWE), Terry, based on DNA evidence from
                  DWE’s sister, where the claimants’ mother claims that DWE was also her biological
                  father.
               
               SHORT ANSWER
               The evidence currently before the agency is insufficient to establish a father-child
                  relationship between DWE and C1 or C2 under Arizona law or under the alternative federal
                  standard. The children are therefore not entitled to survivor’s benefits on DWE’s
                  account.
               
               SUMMARY OF EVIDENCE
               DWE was born on November. He died on February 13, 2004, in Mesa, Arizona. The information
                  we received with the opinion request indicated that t DWE had a 2003 disability benefit
                  application on file but he was not the applicant. This application listed Nichole
                  his child but did not list C1 or C2 as his children.
               
               Jessica is DWE’s biological daughter, born on July. C1, Zachary, was born on November,
                  in Phoenix, Arizona, and currently lives in Kansas City, Kansas. His birth certificate
                  lists Jessica as his mother. The space for the father’s name on his birth certificate
                  is blank.
               
               C2, Terri, was born on February, in Mesa, Arizona, and currently lives in Kansas City,
                  Kansas. Her birth certificate lists Jessica as her mother. The space for the father’s
                  name on her birth certificate is also blank.
               
               Jessica protectively filed for surviving child benefits for her children, C1 and C2,
                  on May 8, 2013. She claims that DWE is also her children’s biological father (and
                  grandfather). Jessica told the agency that she filed a police report and obtained
                  a restraining order against DWE with the Mesa, Arizona, Police Department in June
                  2001 to report incest and DWE stalking her; however, she no longer has copies of these
                  documents. She said that the Mesa authorities did not file criminal charges against
                  DWE because she made the report after she turned 18 years old. She did not provide
                  any further personal statement or details. Jessica did not present evidence indicating
                  that a court ordered DWE to pay child support or decreed him to be the father of either
                  C1 or C2. She did not submit any written acknowledgements of paternity, and DWE was
                  not living with the children or contributing to their support at the time of his death.
               
               Jessica submitted DNA test results from DNA Diagnostics Center (DDC) and seeks to
                  rely on these tests to support the children’s claims. On July 10, 2013, DDC [1] (who is also the children’s paternal aunt through Jessica), as well as from Jessica,
                  C1 and C2. On July 22, 2013, Laboratory Director John, Ph.D., verified that the interpretation
                  of the DNA results was correct as reported. The DNA test results showed that a comparison
                  of C1’s DNA to Maria’s DNA revealed a probability of relatedness of 92.9%, with a13
                  to 1 likelihood that Maria is C1’s biological relative. DNA test results for C2 indicated
                  that the probability of relatedness between C2 and Maria is 95%, with a 19 to 1 likelihood
                  that Maria is C2’s biological relative. The lab calculated the probability of relatedness
                  by using a comparison to untested, unrelated, random individuals of the Caucasian
                  population.
               
               In June 2013, the agency telephoned Maria in an attempt to develop the children’s
                  claims. According to the Report of Contact, Maria stated she was “not sure about her
                  brother being the father of the children.” [2]
               On November 22, 2013, OGC telephoned the DDC laboratories and spoke with forensics
                  department employee Nick. Nick said that in a hypothetical situation such as the one
                  presented by the current case, DDC would perform an avuncular test (DNA test comparing
                  DNA with an aunt or uncle) using DNA from the paternal aunt, the children, and the
                  mother. Nick confirmed that the mother’s relationship as the paternal aunt’s niece
                  would not interfere with the test results as long as the test included the mother’s
                  DNA, as the lab could separate her contribution to the child leaving only a comparison
                  of the paternal aunt’s DNA to the child’s DNA. However, if the alleged father had
                  any brothers, the DNA test would not specify which brother was the father. Nick also
                  explained that test results showing the percentage of relatedness to a paternal aunt
                  from two children who allegedly had the same father may differ because individuals
                  receive half of their DNA from their mother and half of their DNA from their father.
                  Since the genetic markers are passed on randomly, one child might have more genetic
                  markers matching another relative than does a sibling with the same parents.
               
               Following the call to DDC, we asked whether DWE had any brothers. On December 9, 2013,
                  Jessica told the field office that DWE had two brothers. Jessica said she did not
                  have their contact information but that her aunt, July, might know where they were.
                  The field office contacted July but was not able to confirm her identity, or obtain
                  her assistance and additional information.
               
               ANALYSIS
               Under the Social Security Act (Act), every unmarried minor child of an insured individual
                  [3] However, to receive child insurance benefits, the applicant must qualify as the insured
                  individual’s “child” and be dependent on the insured individual at the time of his
                  death. See id.; 20 C.F.R. § 404.350. When the insured individual and the claimant’s mother have
                  not married, the claimant may show he or she is the child of the deceased individual
                  under either section 216(h)(2)(A) or section 216(h)(3)(C) of the Act. See Astrue v. Capato, 132 S. Ct. 2021, 2026, 2028-29 (2012).
               
               Child status under section 216(h)(3)(C) of the Social Security Act:
               To establish child status under section 216(h)(3)(C) of the Act, the claimant must
                  show he or she is the natural child of the number holder and one of the following:
                  1) the number holder acknowledged in writing that the claimant is his child; 2) a
                  court decreed the number holder to be the claimant’s father; 3) a court ordered the
                  number holder to contribute to the claimant’s support because the claimant was his
                  child; or 4) the number holder is the claimant’s father and was living with or contributing
                  to claimant’s support when he died. See Act § 216(h)(3)(C), 42 U.S.C. § 416(h)(3)(C); 20 C.F.R. § 404.355(a)(3), (4); Program
                  Operations Manual System (POMS) GN 00306.100. The acknowledgment, court decree, or court order must have been made or issued before
                  the number holder’s death. See Act § 216(h)(3)(C), 42 U.S.C. § 416(h)(3)(C); 20 C.F.R. § 404.355(a)(3).
               
               Neither C1 nor C2 has satisfied any of the criteria set forth in section 216(h)(3)(C).
                  Jessica has not submitted any written acknowledgements of paternity, nor has she provided
                  any evidence that a court decreed DWE to be C1 or C2’s father or ordered him to contribute
                  to their support. Jessica also has not provided any evidence that DWE was living with
                  the children or contributing to their support at the time of his death. Accordingly,
                  there is insufficient evidence to establish C1 and C2 as DWE’s children under section
                  216(h)(3)(C) of the Act.
               
               Child status under section 216(h)(2)(A) of the Social Security Act:
               In determining whether a claimant qualifies as the child of the insured individual
                  under section 216(h)(2)(A) of the Act, the Commissioner applies the law governing
                  “the devolution of intestate personal property by the courts of the State in which
                  such insured individual is domiciled” at the time of his death. See Act § 216(h)(2)(A), 42 U.S.C. § 416(h)(2)(A); 20 C.F.R. § 404.355(a)(1), (b). An
                  applicant who satisfies the requirements of section 216(h)(2)(A) of the Act is also
                  deemed dependent upon the insured individual. 20 C.F.R. § 404.361(a) (“If you are
                  the insured’s natural child, as defined in § 404.355, you are considered dependent
                  on him or her”); Social Security Ruling (SSR) 77-2c (“where state intestacy law provides
                  that a child may take personal property from a father’s estate, it may reasonably
                  be thought that the child will more likely be dependent during the parent’s life”).
                  Thus, if a claimant establishes he has inheritance rights under state intestacy laws,
                  he is deemed the insured’s “child” under the Act.
               
               Here, we apply Arizona intestacy law because DWE was domiciled in Arizona at the time
                  of his death. See 20 C.F.R. §§ 404.355(b)(1), (4). In applying state law, the agency does not require
                  a court determination establishing paternity but instead applies the same law and
                  standards that the state court would use. 20 C.F.R. § 404.355(b)(1)-(2).
               
               Under Arizona intestacy laws, the children of a deceased individual inherit all or
                  a portion of the deceased individual’s intestate estate depending on whether the deceased
                  was married at the time of his or her death. See Ariz. Rev. Stat. §§ 14-2102, 14-2103. A “child” is defined as a “person who is entitled
                  to take as a child under this title [Title 14: Trusts, Estates and Protective Proceedings]
                  by intestate succession from the parent whose relationship is involved” and excludes
                  any person who is “only a stepchild, a foster child, a grandchild or a more remote
                  descendant.” Ariz. Rev. Stat. § 14-1201. For purposes of intestate succession in Arizona,
                  “a person is the child of that person’s natural parents, regardless of their marital
                  status.” Ariz. Rev. Stat. § 14-2114; see also Gillett-Netting v. Barnhart, 371 F.3d 593, 598-99 (9th Cir. 2004) (every child in Arizona is the “legitimate
                  child of her or his natural parents”); POMS GN 00306.420(C) (“a person is the child of that person’s natural parents, regardless of their
                  marital status, as may be established by a preponderance of the evidence”). If the
                  issue of the parent-child relationship is in dispute, the court shall establish the
                  relationship under the statutes on maternity and paternity proceedings. See Ariz.
                  Rev. Stat. § 14-2114; see also Ariz. Rev. Stat. § 25-801, et. seq.  [4]
                See Allen v. Sullivan, 139 Ariz. 142 (1984) (M~, concurring opinion) (Paternity actions are civil proceedings in Arizona, and a complaint
                  must establish parentage by a preponderance of the evidence); Moreno v. Superior Court of Pima County, 3 Ariz. App. 361, 362 (Ariz. Ct. App. 1966) (paternity established by a preponderance
                  of the evidence in civil actions).
               
               Arizona law provides that a man is presumed to be the father of a child if:
               1. He and the mother of the child were married at any time in the ten months immediately
                  preceding the birth or the child is born within ten months after the marriage is terminated
                  by death, annulment, declaration of invalidity or dissolution of marriage or after
                  the court enters a decree of legal separation.
               
               2. Genetic testing affirms at least a ninety-five per cent probability of paternity.
               3. A birth certificate is signed by the mother and father of a child born out of wedlock.
               4. A notarized or witnessed statement is signed by both parents acknowledging paternity
                  or separate substantially similar notarized or witnessed statements are signed by
                  both parents acknowledging paternity.
               
               Ariz. Rev. Stat. § 25-814; see also Ariz. Rev. Stat. § 25-807(D) (genetic tests indicating the likelihood of the alleged
                  father’s paternity is ninety-five percent or greater establishes a presumption of
                  paternity and may be rebutted by clear and convincing evidence); POMS GN 00306.420 (agency guidance on Arizona Intestacy Laws). [5]
               If two or more presumptions apply, the presumption based on “weightier considerations
                  of policy and logic will control.” Ariz. Rev. Stat. § 25-814; see also POMS GN 00306.420(C). Any paternity presumption under this section may be rebutted by clear and convincing
                  evidence. Ariz. Rev. Stat. § 25-814; see also Aranda v. Cardenas, 215 Ariz. 210, 213 (Ariz. Ct. App. 2007); POMS GN 00306.420(D). A court decree establishing paternity by another man also rebuts the paternity
                  presumption. Ariz. Rev. Stat. § 25-814.
               
               Individuals, including the mother of a child, may initiate proceedings to establish
                  the paternity of the child. Ariz. Rev. Stat. § 25-803(A). The court, on its own motion
                  or on motion of any party to the paternity proceedings, shall order the mother, her
                  child or children, and the alleged father to submit to genetic testing using an accredited
                  laboratory. Ariz. Rev. Stat. § 25-807(C).
               
               In this case, Jessica submitted DNA test results from DDC, a laboratory that is accredited
                  or certified by the American Association of Blood Banks (AABB) and the College of
                  American Pathologists (CAP). [6]
               See id.  Since DDC did not have DNA from DWE to use, the lab performed an avuncular test which
                  is used to establish whether a child is biologically associated to a sibling of the
                  alleged father. See POMS GN 00306.065(C)(1) (contemplating that paternity may be established through DNA testing of relatives);
                  see also DDC, Aunt/Uncle DNA Avuncular Test, available at http://www.ddc-southafrica.com/aunt-uncle-dna-test.php (last visited Nov. 18, 2013). Avuncular tests that include the DNA from the biological
                  mother produce a more exact test result, as the mother’s DNA markers are removed from
                  the child’s profile, thus identifying and separating the father’s genes which are
                  compared to the alleged paternal aunt or uncle. See DDC, Aunt/Uncle DNA Test, available at http://www.ddc-southafrica.com/aunt-uncle-dna-test.php#<http://www.ddc-southafrica.com/aunt-uncle-dna-test.php> (last visited Nov. 18, 2013); Paternity USA, available at https://www.paternityusa.com/Aunt-Uncle-DNA-Testing.htm (last visited Nov. 18, 2013). Significantly, unlike paternity tests, which provide
                  a conclusive 99.99% result, avuncular tests determine an index number that indicates
                  the genetic odds that the individuals being tested are biologically related.  See AAA DNA Testing, available at http://aaadnatesting.com/avuncular-dna-test.htm (last visited Nov. 18, 2013); Biogene DNA available at http://dna-paternity-testing.com/avuncular-dna-test/ (last visited Nov. 18, 2013).
               
               Here, the avuncular test revealed that DWE’s sister had a 92.9% probability of relatedness
                  to C1 and a 95% probability of relatedness to C2. The likelihood that Maria was the
                  biological relative of the children was 13 to 1 for C1, and 19 to 1 for C2. Although
                  Jessica shared the same DNA as DWE and his sister, Nick from DDC advised that this
                  would not interfere with the validity of the test results because the lab would separate
                  the mother’s DNA from the children’s DNA, leaving only a comparison of the DNA the
                  children received from their father with his sister’s DNA. See, e.g., Ariz. Rev. Stat. § 25-807(C) (an expert “duly qualified as an examiner of genetic
                  markers” shall be agreed on by the parties or appointed by the court to analyze and
                  interpret the results and report to the court).
               
               Under Arizona law, a man is presumed to be the father of a child if genetic testing
                  affirms at least a ninety-five percent probability of paternity. See Ariz. Rev. Stat. § 25-814; see also Hall v. Lalli, 194 Ariz. 54, 61 (1999) (en banc) (“Blood tests carry great weight in paternity
                  determinations because ‘the results do not depend upon a party’s testimony and because
                  the tests are verifiable.’”) (citing Carl , Independent Evidence: A New Tool for Paternity Cases, 86 ILL.B.JJ. 476, 480 (1998)). This provision of Arizona law appears to be based
                  on testing of the alleged father, not a relative of the father, even though the wording
                  of the statute is not explicit. Thus, it is unclear what weight an Arizona court would
                  put on these DNA tests in the absence of any other evidence except the mother’s statement.[7]
               See A~, 215 Ariz. at 213-15 (declining to apply the requirements of the paternity statutes
                  in a wrongful death proceeding where the “legislature has not explicitly done so”
                  and thus narrowly construing the paternity statutes).
               
               After excluding the mother’s DNA, DDC’s test results revealed that C2 had a 95% probability
                  of relatedness to Maria based on the DNA C2 received from her father, indicating that
                  C2’s father was Maria’s brother. However, DWE was one of three brothers and the test
                  results do not specify which brother was the father; only that C1 and C2 had a 92%
                  and 95% probability of relatedness to DWE’s sister based on the father’s DNA.[8] Accordingly, using the preponderance of the evidence standard, we cannot conclude
                  that Arizona would find DWE to be the children’s father based on the DNA evidence.
               
               In addition, Jessica has not provided any other evidence to support her claim that
                  DWE was C1 and C2’s father or give context to the DNA test results. For example, she
                  did not provide copies of her 2001 police report or petition for a restraining order;
                  these documents, written closer in time to the events at issue, may provide additional
                  support for the claim.
               
               Finally, we recognize that Arizona’s policy of protecting children’s financial interests
                  is an equitable factor weighing in favor of establishing a parent-child relationship
                  and intestacy rights. Ariz. Rev. Stat. § 25-814; Ariz. Rev. Stat. § 25-501 (every
                  person has a duty to provide “all reasonable support” for that person’s natural and
                  adopted minor, unemanicipated children); H~, 194 Ariz. at 781-83 (discussing familial, legal and equitable interests in determining
                  paternity); A~, 215 Ariz. at 214 (the “purpose of the paternity statutes ‘appear[ed] to be to provide
                  financial support for the child from the natural parent’”) (citing Hurt v. Superior
                  Court, 124 Ariz. 45, 48 (1979)). Nonetheless, the evidence in this case is still not
                  sufficient for us to conclude that an Arizona court would find paternity established
                  by a preponderance of the evidence such that C1 and C2 could inherit intestate from
                  DWE as his children under Arizona law.
               
               CONCLUSION
               The genetic evidence based on DNA testing of DWE’s sister, is insufficient to establish
                  paternity, and thus intestate inheritance rights, under Arizona law. The evidence
                  also fails to establish paternity under the alternate federal standard. Accordingly,
                  the children are not entitled to child survivor benefits under the Act. Should the
                  mother submit additional evidence, we will be happy to review and reconsider this
                  conclusion.