How do applicants receive higher level certificates or renew existing certificates? An applicant would need to consult with the Louisiana employing school system to determine if a higher certificate should be requested or if a renewal/extension is needed. The human resource office within the Louisiana employing system will use the appropriate application to make such a request on behalf of the educator. Requests for higher-level certificates have to come from a Louisiana-employing school system to be considered since certification validity is based on teaching effectiveness as verified through evaluations conducted by the employer and verified teaching experience.