Section 4. Jurisdiction. —

The CIAC shall have original and exclusive jurisdiction over disputes arising from, or connected with, contracts entered into by parties involved in construction in the Philippines, whether the dispute arises before or after the completion of the contract, or after the abandonment or breach thereof. These disputes may involve government or private contracts. For the Board to acquire jurisdiction, the parties to a dispute must agree to submit the same to voluntary arbitration.The jurisdiction of the CIAC may include but is not limited to violation of specifications for materials and workmanship; violation of the terms of agreement; interpretation and/or application of contractual time and delays; maintenance and defects; payment, default of employer or contractor and changes in contract cost.Excluded from the coverage of this law are disputes arising from employer-employee relationships which shall continue to be covered by the Labor Code of the Philippines.