Native sod means land on which the natural state plant cover before tilling was composed principally of native grasses, grass-like plants, forbs, or shrubs suitable for grazing and browsing and is land that has never been tilled (determined in accordance with information collected and maintained by an agency of the USDA or other verifiable records that are provided by a producer and acceptable to FSA).
7 CFR § 1437.3
The terms and definitions in this section apply to NAP. The terms and definitions in part 718 of this title and part 1400 of this chapter also apply to NAP, except where those same terms are defined in this section. In that case, the terms and definitions of this section apply.