California Code, Education Code - EDC § 39820

Notwithstanding any other law, the governing board of a school district may provide for the transportation to and from public school of pupils who have attained the age of three years and nine months and are enrolled in classes established pursuant to Chapter 4.45 (commencing with Section 56440) of Part 30 of Division 4 whenever in the judgment of the governing board of a school district, transportation is advisable and good reasons exist.  A governing board of a school district may allow for the transportation of parents of pupils enrolled in these classes for the purpose of accompanying their children to and from the attendance center offering the early primary classes.