Under DAO 2007-29, land surveys must be based on which of the following?

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Multiple Choice

Under DAO 2007-29, land surveys must be based on which of the following?

Land surveys rely on a fixed spatial framework that is tied to geodetic reference points. These control points are part of the national geodetic network and have known coordinates in a standard datum, which gives every measured location a precise, common reference. By anchoring survey work to these points, the positions of parcel corners and boundaries can be determined with consistent accuracy and can be re-established accurately in future surveys, even if the surface features or maps change. This approach is why geodetic reference points are the basis for surveying under DAO 2007-29. They provide a stable, legally acceptable frame for measurements, enabling uniformity across surveys and time. While topographic maps or satellite imagery can assist in planning and visualization, they do not offer the fixed, authoritative reference frame required for precise boundary determination. Historical land ownership records do not provide measurement anchors and cannot substitute for a geodetic framework.

Land surveys rely on a fixed spatial framework that is tied to geodetic reference points. These control points are part of the national geodetic network and have known coordinates in a standard datum, which gives every measured location a precise, common reference. By anchoring survey work to these points, the positions of parcel corners and boundaries can be determined with consistent accuracy and can be re-established accurately in future surveys, even if the surface features or maps change.

This approach is why geodetic reference points are the basis for surveying under DAO 2007-29. They provide a stable, legally acceptable frame for measurements, enabling uniformity across surveys and time. While topographic maps or satellite imagery can assist in planning and visualization, they do not offer the fixed, authoritative reference frame required for precise boundary determination. Historical land ownership records do not provide measurement anchors and cannot substitute for a geodetic framework.

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