229 Neb. Admin. Code, ch. 8, § 003
A Certificate of Inspection issued in accordance with Neb. Rev. Stat. § 48-722 and 229 NAC 7 shall be valid until expiration unless some defect or condition affecting the safety of the boiler or pressure vessel for which it was issued is discovered, and such defect or condition is not repaired. Failure to repair a defect or condition affecting the safety of the boiler or pressure vessel shall be cause for revocation of such boiler's or pressure vessel's Certificate of Inspection. Any boiler or pressure vessel that has had its Certificate of Inspection revoked for the reason described above shall not be operated until the boiler or pressure vessel has been repaired, inspected, and the Certificate of Inspection reissued.
229 Neb. Admin. Code, ch. 8, § 003