Yes. California Education Code section 60615 allows a parent or guardian to submit a written request to school officials to exclude his or her child from any or all parts of state-mandated assessments.
To protect your child: For many students, the Big Test can be very stressful. To improve education for all students: Opting out is an effective way to protest the overuse and misuse of standardized tests, which forces schools to focus on the demands of the tests instead of the needs of students.
Dear Principal Name, I wanted to let you know that my child, name, will not take part in the name the test this year. We ask that you make arrangements for him/her to have a productive educational experience during the testing period. Thank you for all you do.
States are required by federal law to administer math and ELA (English Language Arts) tests to every public school student in 3rd-8th grade. However, it is your right as a parent to refuse these tests on behalf of your child.