in paragraph (1) is the following: (A) Any acreage on the farm enrolled in the conservation reserve program or wetlands reserve program (or successor programs) under chapter 1 of subtitle D of title XII of the Food Security Act of 1985 ( 16 U.S.C. 3830 et seq.). (B) Any other acreage on the farm enrolled in a Federal conservation program for which payments are made in exchange for not producing an agricultural commodity on the acreage. (C) If the Secretary designates additional oilseeds, any eligible oilseed acreage, which shall be determined in the same manner as eligible oilseed acreage under subsection (b)(1)(C). (3) Selection of acres The Secretary shall give the owner of the farm the opportunity to select the updated base acres for a covered commodity for the farm against which the reduction required by paragraph (1) will be made. (4) Exception for double-cropped acreage In applying paragraph (1), the Secretary shall make an exception in the case of double cropping, as determined by the Secretary. (d) Reduction in updated base acres (1) Reduction at option of owner (A) In general The owner of a farm may reduce, at any time, the updated base acres for any covered commodity for the farm. (B) Effect of reduction A reduction under subparagraph (A) shall be permanent and made in a manner prescribed by the Secretary. (2) Required action by Secretary (A) In general The Secretary shall proportionately reduce updated base acres on a farm for land that has been subdivided and developed for multiple residential units or other nonfarming uses if the size of the tracts and the density of the subdivision is such that the land is unlikely to return to the previous agricultural use, unless the producers on the farm demonstrate that the land— (i) remains devoted to commercial agricultural production