; but (B) may not include both the initial commodity and the subsequent commodity. (b) Adjustment of base acres (1) In general Notwithstanding the update of base acres under subsection (a), the Secretary shall provide for an adjustment, as appropriate, in the updated base acres for covered commodities for a farm whenever any of the following circumstances occur: (A) A conservation reserve contract entered into under section 1231 of the Food Security Act of 1985 ( 16 U.S.C. 3831 ) with respect to the farm expires or is voluntarily terminated. (B) Cropland is released from coverage under a conservation reserve contract by the Secretary. (C) The producer has eligible oilseed acreage as the result of the Secretary designating additional oilseeds, which shall be determined in the same manner as eligible oilseed acreage under section 1101(a)(1)(D) of the Food, Conservation, and Energy Act of 2008 ( 7 U.S.C. 8711(a)(1)(D) ). (2) Special conservation reserve acreage payment rules For the crop year in which an updated base acres adjustment under subparagraph (A) or (B) of paragraph (1) is first made, the owner of the farm shall elect to receive price loss coverage or agriculture risk coverage with respect to the acreage added to the farm under this subsection or a prorated payment under the conservation reserve contract, but not both. (c) Prevention of excess updated base acres (1) Required reduction If the updated base acres for a farm exceeds the actual cropland acreage of the farm, the Secretary shall reduce the updated base acres for one or more covered commodities for the farm so that the sum of the base acres and the other acreage described in paragraph (2) does not exceed the actual cropland acreage of the farm. (2) Other acreage The other acreage referred to 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