B. PROCEDURE FOR THE VERIFICATION OF PREVIOUSLY APPROVED WELL AS THOSE PENDING WITH THE DENR UPON THE PASSAGE OF IPRA. SURVEYS AS Section 2. General Provision. All survey plans submitted in connection with ancestral land/domain claims previously approved for registration or titling purposes by the DENR or LRA (formerly Land Registration Commission), including those approved by NCIP First Commission but were not issued with either CADT or CALT, shall be reviewed and verified by ADO. On the other hand, unapproved survey plans submitted for the same purpose are not subject to such review and verification, and the same shall be governed by Part II, Rule II, Section 1 of this Rules. The procedure for review and verification of previously approved survey plans are as follows: a. Review of Survey Returns.The review of survey returns shall be done to determine the correctness and completeness of the approved data or record on hand and to ascertain the availability of the necessary data that can be used as reference for the conduct of verification survey. In cases where delineation survey was conducted using GPS instruments, review of GPS data shall be conducted by examination of the GPS electronic files and other GPS supporting documents. In the absence of data necessary for verification, research shall be undertaken for the purpose of gathering pertinent documents. b. Verification Survey.Only NCIP geodetic engineers and/or accredited geodetic engineers shall conduct verification survey. This verification shall include, among others, actual inspection as to the presence of corner monuments and survey/observation of strategic corners to determine if indeed an actual survey was conducted and to test the positions of corner stones/monuments. As such, the Geodetic Engineer shall conduct test traverse, point positioning, and such other activities provided under Sec. 621 to 625 (Verification Survey) of DAO 98-12. Ground verification shall likewise be undertaken and this involves consultation between and among the Geodetic Engineer who conducted the first survey, the community-claimant, and other concerned entities. c. Preparation of Reports and Recommendations. Within twenty (20) days from the completion of the ground verification survey, the NCIP geodetic engineer and/or accredited geodetic engineer directed/contracted to conduct verification survey shall prepare and submit a report to ADO detailing his/her observations and findings on the review of survey returns, and the result of his/her ground verification survey including such specific recommendations as to the necessity of conducting resurvey, amendment survey or correction, as the case may be. d. Conduct of Re-Survey or Amendment Survey. Any re-survey or amendment survey shall comply with the requirements provided in Part II, Rule II, Section 2 of this Rules. Section 3. Defective Surveys for Want of Authority. Defective surveys for want of authority refers to past surveys conducted at the instance of ICC/IP claimant, undertaken by private geodetic engineers, but without the required authority from the NCIP or the DENR. Defective Surveys for want of authority shall be verified by ADO following the process in Part II, Rule II, Section 2, and if found to be in order, the defect for want of authority shall be cured through the approval of the plan by ADO. Otherwise, Part II, Rule II, Section 1 of this rule shall be applied. RULE III STANDARDS FOR DELINEATION OF ANCESTRAL LANDS/DOMAINS Section 1. Methods of Delineation. The delineation of ancestral domains/lands shall be conducted using conventional survey methods, GPS or a combination of both. Delineation of ancestral waters shall be done through GPS; for smaller areas, conventional methods may likewise be used. Page 21 of 26 Revised Omnibus Rules on Delineation and Recognition of Ancestral Domains and Lands of 2012