; (2) to increase the economic viability of manufacturing products using material described in paragraph (1); and (3) including structural testing of hardwood species for use in mass timber. 404. Insurance product to replace buffers The Secretary of Agriculture, acting through the Chief of the Forest Service, may— (1) establish an intragovernmental revolving fund to maintain adequate buffer reserves for a project implementing a covered activity (as defined in subsection (a) of section 201) under that section to cover unforeseen losses in carbon stocks to address nonpermanence; and (2) transfer amounts into and out of the intragovernmental revolving fund established under paragraph (1) to serve as a buffer pool for covered activities referred to in paragraph (1). 405. Forest health threat centers The Secretary of Agriculture, acting through the Chief of the Forest Service, shall— (1) seek to expand the services provided by the Western Wildland Environmental Threat Assessment Center and the Eastern Forest Environmental Threat Assessment Center such that those Centers become centers of excellence to inform large-scale climate-resilient forest management; and (2) share the syntheses, models, and application tools developed by the Western Wildland Environmental Threat Assessment Center and the Eastern Forest Environmental Threat Assessment Center with— (A) the Department of Agriculture climate hubs; and (B) the Climate Adaptation Science Centers managed by the Secretary, acting through the Director of the United States Geological Survey.