1. Short title This Act may be cited as the Sustainable Farmland for the Future Act . 2. Definitions Section 1201(a) of the Food Security Act of 1985 ( 16 U.S.C. 3801(a) ) is amended— (1) in paragraph (3)— (A) in subparagraph (A), by striking highly erodible and inserting covered ; and (B) in subparagraph (B), by striking the highly erodible and inserting covered ; (2) in paragraph (4)— (A) in subparagraph (A), by striking ; and and inserting a semicolon; (B) by amending subparagraph (B) to read as follows: (B) are designed to, in a cost effective and technically practicable manner— (i) achieve a substantial improvement in water quality; (ii) achieve a rate of soil erosion no greater than the soil loss tolerance level, as determined by the Natural Resources Conservation Service; (iii) prevent ephemeral gully erosion; and (iv) establish and maintain a minimum of 50 feet of perennial vegetation between covered cropland and intermittent or perennial waterways; and ; and (C) by adding at the end the following: (C) are based on the most recent and technically accurate soil erosion prediction models to determine if soil erosion by wind and water exceed the Soil Loss Tolerance Level on covered cropland subject to subtitle B. ; (3) in paragraph (6), by striking highly erodible and inserting covered ; (4) by amending paragraph (7)(A)(ii) to read as follows: (ii) before such action, such land was wetland. ; (5) in paragraph (9), by striking Any highly erodible land on which an agricultural commodity is produced after December 23, 1985, and that is not exempt under section 1212, shall be considered as part of the field in which the land was included on December 23, 1985, unless the owner and Secretary agree to modification of the boundaries of the field to carry out this title.