; (C) by inserting after subsection (a) the following: (b) Activities described Activities referred to in subsection (a) are— (1) the production of an agricultural commodity on a field on which cropland is predominant; (2) the designation of land on which cropland is predominant to be set aside, diverted, devoted to conservation uses, or otherwise not cultivated under a program administered by the Secretary to reduce production of an agricultural commodity; and (3) the production of an agricultural commodity without having in place a conservation plan. ; and (D) in subsection (c) (as so redesignated), by striking the heading and inserting Authority of Secretary .— . (2) Exemptions Section 1212 of the Food Security Act of 1985 ( 16 U.S.C. 3812 ) is amended— (A) in subsection (a)(3)— (i) in the first sentence, by striking highly erodible land and inserting cropland ; and (ii) in the first and second sentences, by striking only be required to apply a conservation plan established under this subtitle. The person shall not be required to meet a higher conservation standard than the standard applied to other highly erodible and inserting be required to apply a conservation plan established under this subtitle consistent with the standard applied to other ; (B) in subsection (c)(1), by striking highly erodible land each place it appears and inserting cropland ; and (C) in subsection (f)(4)(A)— (i) in clause (i), by striking highly erodible ; and (ii) in clause (ii)(II), by inserting and soil health after erosion control . (3) Conforming amendment Subtitle B of title XII of the Food Security Act of 1985 ( 16 U.S.C. 3811 et seq. ) is amended in the subtitle heading by striking Highly Erodible Land and inserting Cropland . 307. National and regional agroforestry centers Section 1243 of the Food, Agriculture, Conservation, and Trade Act of 1990 ( 16 U.S.C. 1642 note; Public Law 101–624 ) is amended— (1) by striking the section heading and inserting National and regional agroforestry centers