A bill to amend the Act of June 22, 1948.

This bill amends Section 5 of the Thye-Blatnik Act (1948) to change how land appraisals are calculated. It replaces "fair appraised value" with "highest fair appraised value, including historical fair appraised values" as determined by the Secretary of Agriculture. The change directly affects landowners and entities using this appraisal standard for agricultural or conservation purposes under the Act, requiring appraisals to consider historical values alongside current ones. The key mechanism is updating the valuation definition to include historical data in the Secretary's determination process.