Notwithstanding any other provisions of this part, the following land is not eligible for enrollment in the EWRP:

(a) Land that contains either timber stands or trees established in connection with a CRP contract;

(b) Lands owned or acquired by an agency of the Federal Government;

(c) Land already subject to a deed restriction prohibiting the production of agricultural commodities or the alternation of existing wetland hydrologic conditions;

(d) Land located between the pre-flood mainstem levees and the river; or

(e) Land that was restored to wetland conditions, as required under Part 12 of this title, to mitigate the conversion of wetland to cropland use.