Cal. Educ. Code § 56500.5

As provided in Section 300.102(a)(3)(iii) of Title 34 of the Code of Federal Regulations, parents or guardians of an individual with exceptional needs shall be given reasonable written prior notice, in accordance with Section 56500.4, that their child will be graduating from high school with a regular high school diploma because graduation from high school with a regular diploma constitutes a change in placement.