; 43 U.S.C. 2601 et seq. ). (3) Secretary concerned The term Secretary concerned means— (A) the Secretary of Agriculture, acting through the Chief of the Forest Service, with respect to National Forest System land; and (B) the Secretary of the Interior, acting through the Director of the Bureau of Land Management, with respect to public lands. I Accomplishments Over Rhetoric 101. Thinning targets (a) Baseline For the National Forest System and for public lands, the Secretary concerned shall determine— (1) for each of fiscal years 2017 through 2021, the number of acres mechanically thinned, for acres commercially thinned and for acres pre-commercially thinned