The Board shall disapprove any final map for failure to meet or perform any of the requirements or conditions of the Subdivision Map Act or this title which were applicable to the subdivision at the time of approval of the tentative subdivision map. Such disapproval shall be accompanied by a finding identifying the requirements or conditions which were not met or performed. The Board may waive the provisions of this section if it finds that the failure of the map was the result of a technical and inadvertent error which does not materially affect the validity of the map.

The Board of Supervisors shall not postpone or refuse approval of a final map because the subdivider has failed to meet a tentative subdivision map condition requiring construction or installation of improvements on land which neither the subdivider nor the county has sufficient title or interest to permit the improvements to be made. In such a case, the county shall follow the procedure according to Cal. Gov’t. Code § 66462.5. (Formerly 23.07.012)