LISD requires that all volunteers undergo a background check before being allowed to work at a school site/event.  NEW volunteers should submit an application immediately. RETURNING volunteers must submit an application with LISD every 3 years.  If you are unsure, there is no harm to applying again.  Don't forget to include your spouse in this process, too! Once submitted, please allow 3 weeks for processing. Click here to begin the background check application.