Property Registration Decree (PD 1529)
Section 17. What and where to file. The application for land registration shall be filed with the Court of First Instance of the province or city where the land is situated. The applicant shall file together with the application all original muniments of titles or copies thereof and a survey plan of the land approved by the Bureau of Lands.
The clerk of court shall not accept any application unless it is shown that the applicant has furnished the Director of Lands with a copy of the application and all annexes.