California Code, Education Code - EDC § 51749

(a) The Superintendent, upon the next revision of the California Basic Educational Data System, or its equivalent, following July 1, 1990, shall include all data collection elements necessary to compile an annual statewide profile of pupils participating in independent study, including data on the number and percentage of pupils pursuing their coursework through independent study who successfully complete the requirements for a high school diploma.

(b) Commencing with the 2021-22 school year, the department shall include a required field in the California Longitudinal Pupil Achievement Data System for the collection of the number of pupils participating in independent study pursuant to this article for 16 or more schooldays.