CA Fam Code Section 7555


There is a rebuttable presumption, affecting the burden of proof, of paternity, if the court finds that the paternity index, as calculated by the experts qualified as examiners of genetic markers, is 100 or greater. This presumption may be rebutted by a preponderance of the evidence.


As used in this section:


“Genetic markers” mean separate genes or complexes of genes identified as a result of genetic tests.


“Paternity index” means the commonly accepted indicator used for denoting the existence of paternity. It expresses the relative strength of the test results for and against paternity. The paternity index, computed using results of various paternity tests following accepted statistical principles, shall be in accordance with the method of expression accepted at the International Conference on Parentage Testing at Airlie House, Virginia, May 1982, sponsored by the American Association of Blood Banks.
Last Updated

Aug. 19, 2023

§ 7555’s source at ca​.gov