BPC §8773: (a) Except as provided in subdivision (b) of Section 8773.

(a) Except as provided in subdivision (b) of Section 8773.4, a person authorized to practice land surveying in this state shall complete, sign, stamp with his or her seal, and file with the county surveyor or engineer of the county where the corners are situated, a written record of corner establishment or restoration to be known as a “corner record” for every corner established by the Survey of the Public Lands of the United States, except “lost corners,” as defined by the Manual of Surveying Instructions (2009), published by the federal Bureau of Land Management and every accessory to such corner which is found, set, reset, or used as control in any survey by such authorized person. (b) After the establishment of a lost corner, as defined by the Manual of Surveying Instructions (2009), published by the federal Bureau of Land Management a record of survey shall be filed as set forth in Section 8764. (c) Any person authorized to practice land surveying in this state may file such corner record for any property corners, property controlling corners, reference monuments, or accessories to a property corner.