Cal. Codes » Family Code / DIVISION 12. PARENT AND CHILD RELATIONSHIP / PART 2. PRESUMPTION CONCERNING CHILD OF MARRIAGE AND GENETIC TESTING TO DETERMINE PARENTAGE / CHAPTER 2. Genetic Testing to Determine Parentage
California Codes

Cal. Family Code § 7552.5 (2026)

Genetic Testing to Determine Parentage

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(a)A copy of the results of all genetic testing performed under Section 7551 or 7558 shall be served upon all parties, by any method of service authorized under Chapter 5 (commencing with Section 1010) of Title 14 of Part 2 of the Code of Civil Procedure except personal service, no later than 20 days prior to a hearing in which the genetic test results may be admitted into evidence. The genetic test results shall be accompanied by a declaration under penalty of perjury of the custodian of records or other qualified employee of the laboratory that conducted the genetic tests, stating in substance each of the following:

(1)The declarant is the duly authorized custodian of the records or other qualified employee of the laboratory, and has authority to certify the records.

(2)A statement that establishes in detail the chain of custody of all genetic samples collected, including the date on which the genetic sample was collected, the identity of each person from whom a genetic sample was collected, the identity of the person who performed or witnessed the collecting of the genetic samples and packaged them for transmission to the laboratory, the date on which the genetic samples were received by the laboratory, the identity of the person who unpacked the samples and forwarded them to the person who performed the laboratory analysis of the genetic sample, and the identification and qualifications of all persons who performed the laboratory analysis and published the results.

(3)A statement that establishes that the procedures used by the laboratory to conduct the tests for which the test results are attached are used in the laboratory’s ordinary course of business to ensure accuracy and proper identification of genetic samples.

(4)The genetic test results were prepared at or near the time of completion of the genetic tests by personnel of the business qualified to perform genetic tests in the ordinary course of business.

(b)The genetic test results shall be admitted into evidence at the hearing or trial to establish parentage, without the need for foundation testimony of authenticity and accuracy, unless a written objection to the genetic test results is filed with the court and served on all other parties, by a party no later than five days prior to the hearing or trial in which parentage is at issue.

(c)If a written objection is filed with the court and served on all parties within the time specified in subdivision (b), experts appointed by the court shall be called by the court as witnesses to testify to their findings and are subject to cross-examination by the parties.

Notes of Decisions
Cited in 4 cases (3 in the last 5 years), 2014–2023 · leading case: Falcon v. Long Beach Genetics, Inc., 224 Cal. App. 4th 1263 (Cal. Ct. App. 2014).
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Falcon v. Long Beach Genetics, Inc., 224 Cal. App. 4th 1263 (Cal. Ct. App. 2014). · cites it 3× “5 The judgment states: “Family Code section 7552.5 requires the County to serve on all parties a ‘copy of the results of all genetic tests performed under Section 7552 or 7558 .”
Steinmeyer v. Lab'y Corp. of Am. Holdings, No. 3:22-cv-01213 (S.D. Cal. Mar. 15, 2023). · cites it 2× “37-1, quoting Cal. Fam. Code § 7552.5 (a).) Alleging that Defendants Labcorp 27 and Maha have concealed some portions of the paternity test they administered and 28 1 analyzed in 2017, Plaintiff asks the Court to issue a TRO to “forc[e]” Defendants to 2 disclose “all results,…”
Steinmeyer v. Lab'y Corp. of Am. Holdings, No. 3:22-cv-01213 (S.D. Cal. Apr. 17, 2023). “) Plaintiff brought various state law causes of 13 actions against Defendants Labcorp and Maha, including alleged violations of California 14 Family Code § 7552.5(a). (FAC ¶¶ 238–43; Pl.”
Steinmeyer v. Lab'y Corp. of Am. Holdings, 676 F. Supp. 3d 851 (S.D. Cal. 2023). “” Cal. Fam. Code § 7552.5 (b). Sections 7554 and 19 7555 set rules for when a positive test creates a presumption of paternity, and specify the 20 process by which a presumed genetic parent may challenge the presumption.”
Cal. Family Code § 7552.5(a): 2 cases
Steinmeyer v. Lab'y Corp. of Am. Holdings, No. 3:22-cv-01213 (S.D. Cal. Mar. 15, 2023). “37-1, quoting Cal. Fam. Code § 7552.5 (a).) Alleging that Defendants Labcorp 27 and Maha have concealed some portions of the paternity test they administered and 28 1 analyzed in 2017, Plaintiff asks the Court to issue a TRO to “forc[e]” Defendants to 2 disclose “all results,…”
Steinmeyer v. Lab'y Corp. of Am. Holdings, No. 3:22-cv-01213 (S.D. Cal. Apr. 17, 2023). “) Plaintiff brought various state law causes of 13 actions against Defendants Labcorp and Maha, including alleged violations of California 14 Family Code § 7552.5(a). (FAC ¶¶ 238–43; Pl.”
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