Neb. Rev. Stat. § 38-185

To deny or refuse renewal of a credential, the department shall notify the applicant or credential holder in writing of the action taken and the reasons for the determination. The denial or refusal to renew shall become final thirty days after mailing the notice unless the applicant or credential holder, within such thirty-day period, requests a hearing in writing. The hearing shall be conducted in accordance with the Administrative Procedure Act.