(1) When the parties concerned consider that an arbitration award rendered by a Regional Labor Relations Commission or a Special Labor Relations Commission is inconsistent with any Act or subordinate statute or ultra vires, they may apply for review of the arbitration award to the National Labor Relations Commission within 10 days from the date of receipt of the award of arbitration.
(2) When the parties concerned consider that an arbitration award rendered by the National Labor Relations Commission or its decision on review referred to in paragraph (1) is inconsistent with any Act or subordinate statute or ultra vires, they may, notwithstanding the provisions of Article 20 of the Administrative Litigation Act, institute an administrative suit against the National Labor Relations Commission within 15 days from the date of receipt of the award of arbitration or the decision on review.
(3) When the parties concerned neither apply for review nor institute an administrative suit within the period under paragraphs (1) and (2), the arbitration award or the decision on review originally rendered by the Labor Relations Commission concerned shall be final and decisive.
(4) When the arbitration award or the decision on review has been final and decisive pursuant to paragraph (3), the parties concerned shall comply therewith.