Change in Perinatal HIV Testing Law went into effect on Jan. 1, 2010 - Changes to Texas Health and Safety Code, Section 81.090, made during the 81st Legislative Session by House Bill 1795 brought Texas perinatal HIV testing requirements into harmony with CDC recommendations. In addition to testing required at the first prenatal visit, effective January 1, 2010, Texas law now requires a second test be done during the third trimester, and upon admission to delivery, if no record of the third trimester HIV test is available. The law also provides for expedited HIV testing of infants at delivery, if a mothers results are not available.