The Bureau of Labor Relations and the Labor Relations Divisions in the regional offices of the Department of Labor shall have original and exclusive authority to act, at their own initiative or upon request of either or both parties, on all inter-union and intra-union conflicts, and all disputes, grievances or problems arising from or affecting labor-management relations in all workplaces, whether agricultural or nonagricultural, except those arising from the implementation or interpretation of collective bargaining agreements which shall be the subject of grievance procedure and/or voluntary arbitration.
The Bureau shall have fifteen (15) working days to act on labor cases before it, subject to extension by agreement of the parties.