; (B) conduct periodic review of such system, and any necessary updates; and (C) establish research and development goals and plans as needed. (h) Inventory (1) In general Not later than 18 months after the date of enactment of this subsection, and every 2 years thereafter, the Secretary, in consultation with the advisory committee established under subsection (f) and the Administrator of the Environmental Protection Agency, shall conduct a nationwide soil health and agricultural greenhouse gas emissions inventory that uses the best available science and data to establish expected average performance for soil carbon drawdown and storage and greenhouse gas emissions reduction by primary production type and production region. (2) Database The Secretary shall create an accessible and interoperable database for the information collected through the inventory conducted under paragraph (1), and shall improve and update such database at least once every two years as new data is collected. (i) Criteria The Secretary, in consultation with the advisory committee established under subsection (f), shall establish criteria for payments, credits, or other forms of incentives to inform policy and markets established to promote soil carbon sequestration or greenhouse gas emissions reductions. The criteria shall— (1) have a documented likelihood to lead to long-term net increases in soil carbon sequestration and net reductions in greenhouse gas emissions, according to the best available science; (2) be based in part on environmental impact modeling of the changes of shifting from baseline agricultural practices to new or improved agricultural practices