; (F) the amount of carbon stored through the manufacture of sustainable wood products; (G) the net carbon stored through a sustainable cycle of harvest and regeneration; (H) the net carbon stored through active forest management; and (I) other factors as determined by the Secretary. (3) Validation program (A) In general The Secretary shall carry out a program for validation and independent testing of the lifecycle models developed under paragraph (1). (B) Requirements In carrying out the validation program under subparagraph (A), the Secretary shall— (i) perform retrospective assessments comparing model predictions to field data on the carbon stored on the National Forest System; and (ii) require independent evaluation and comparison of lifecycle models developed under paragraph (1) against existing models, and enable empirical testing of hypotheses regarding the net effects on land and atmospheric carbon stocks and other greenhouse gas impacts. (4) Report Not later than 1 year after the date of enactment of this Act, the Secretary shall submit to the Committee on Agriculture of the House of Representatives and the Committee on Agriculture, Nutrition, and Forestry of the Senate a report on the findings of the analysis conducted using the model developed under paragraph (1). 104. Reforestation programs (a) National forest cover policy (1) In general Section 3 of the Forest and Rangeland Renewable Resources Planning Act of 1974 ( 16 U.S.C. 1601 ), as amended by section 103, is further amended— (A) by redesignating subsection (e) as subsection (f); (B) by redesignating the second subsection (d) (relating to the policy of Congress regarding forested land in the National Forest System) as subsection (e); and (C) in subsection (e), as so redesignated— (i) in paragraph (2)— (I) in the first sentence— (aa) by striking eight years following the enactment of this subsection and inserting 10 years following the date of enactment of the Trillion Trees Act