The governing board may grant to a pupil regularly enrolled and in attendance in a high school, credit toward graduation from Grade 12 for private instruction in fields and subject included in the courses of study and curricula of the school. The pupil shall demonstrate, by examinations given under the direction and supervision of the school, his capabilities at the beginning and at the end of his period of private instruction and evidence that he has made progress in learning satisfactory to the school.
Cal. Code Regs. Tit. 5, § 1631