Instructions for completing the PSA. Affidavit Filing Period.Mention the correct address and date. Write in reference to your name n give the subject that you want to continue being a student of the same school. Thinking of homeschooling in California? We've got you covered! You can use this letter when you need to get copies of your child's school records. Submit the letter to the District's Administration and the School Principal. UC Berkeley offers two official verification instruments. The University also offers a Letter of Good Standing and the additional services described below.