Massachusetts General Laws Part I. Administration of the Government (Ch. 1-182) Ch. 150F, § 9

A. Final orders of the board made pursuant to this chapter shall be conclusive against all parties to its proceedings and persons who have had an opportunity to be parties to its proceedings unless reversed or modified in proceedings for enforcement or judicial review as herein provided. Final orders of the board shall be subject to review as provided in section 6 of Chapter 150A of the General Laws, provided that a final order of the board under section 5 of this chapter concerning the scope of bargaining units or the designation of a TND organization as an exclusive bargaining representative or as entitled to the production of lists of TNDs shall be overturned only if it is found to be arbitrary and capricious.

B. Final orders of the Secretary of Labor pursuant to section 6(F) of this chapter shall be conclusive against all affected TND organizations and all TNCs in the industry unless reversed or modified in proceedings for enforcement or judicial review as herein provided. Such final orders shall be subject to review in accordance with the provisions of section fourteen of chapter 30A of the General Laws, provided, however, that the determination of the Secretary of Labor shall only be overturned if it is found to be arbitrary and capricious.