(a) Unless otherwise indicated, an applicant must submit the following:(1) a completed application on a department-approved form;(2) the fee required under §78.80; and(3) proof that the applicant meets all requirements for obtaining the credential being sought.(b) Materials submitted in the application process become the property of the department and are not returnable.(c) Except as provided by §78.56(c), all credentials are valid for two years and expire on the second anniversary of the effective date.