THE PLAT AND FIELD NOTES ARE FILED OFFICIALLY
Until the plat is filed in the official public records, the survey is not considered official.
The United State Supreme Court in Cox v. Hart, 1922, 43 S.Ct. 154, stated:
"The running of lines in the field and the laying out and platting of townships, sections, and legal subdivisions, are not alone sufficient to constitute a survey, and all requirements as to approval have been complied with, the lands are to be regarded as unsurveyed and not subject to disposal as surveyed lands."
Once the survey has been accepted, the acceptance and filing notice is advertised in the Federal Register. The field notes and plat are filed in the public room on the date advertised. Once filed, they become official records in the public land records system. The Bureau of Land Management is the official depository for the public land survey records, along with the other public land records.