California Code, Education Code - EDC § 51851

(a) Be of at least 2 1/2 semester periods and shall be taught by a qualified instructor.

(b) Provide the opportunity for pupils to take driver education within the regular schoolday, and within the regular academic year, as defined in Section 37250.  Additional classes may be offered at the discretion of the local school district governing board, the county superintendent of schools, California Youth Authority, and the State Department of Education, to accommodate the pupils who have failed or who cannot otherwise enroll in the regular schoolday program.  For purposes of this section, the regular schoolday shall be that time during which classes are maintained in the courses of instruction provided for in Chapter 1 (commencing with Section 51000), Chapter 2 (commencing with Section 51200), Article 1 (commencing with Section 51500), Article 2 (commencing with Section 51510), Article 3 ( commencing with Section 51520), and Article 4 (commencing with Section 51530) of Chapter 4, and Chapter 5.6 (commencing with Section 51930) of this part, and Chapter 2 (commencing with Section 58400) of Part 31.

(c) Be completed by the pupil within the academic year or summer session in which it was begun.