; and (C) to assist the Secretary in drafting the mass timber plan required under subsection (d). (f) Assistance The Secretary may provide to the Secretary of Transportation and to States technical assistance relating to the use of wood in bridges when undergoing revisions to a State bridge design manual. (g) Availability of appropriations From amounts appropriated for Forest Service research, excluding funding made available for the Forest Inventory and Analysis program, the Secretary may use $4,000,000 to carry out the activities described in this section. 303. Storing carbon in Federal buildings (a) Mass timber buildings database and plan (1) Database The Secretaries, in coordination with any other relevant agencies, shall develop and maintain a running database of mass timber buildings that are owned or leased by the Federal Government and are occupied primarily by employees of the Secretaries (referred to in this subsection as the database ). (2) Assessment The Secretary of Agriculture, acting through the Director of the Forest Products Laboratory of the Forest Service, shall conduct an assessment of each mass timber building included in the database, which shall include collecting data on the embodied carbon of the materials used in the construction of the mass timber buildings included in the database. (3) Plan (A) In general The Secretaries shall prepare a plan to increase the quantity of carbon stored in buildings that are owned or leased by the Federal Government and are occupied primarily by employees of Secretaries. (B) Plan submission Not later than 1 year after the date of enactment of this Act, the Secretaries shall submit the plan under subparagraph (A) to the Committee on Energy and Natural Resources of the Senate and the Committee on Natural Resources of the House of Representatives . (C) Material neutrality The plan submitted by the Secretaries shall be, to the maximum extent practicable, material neutral, and may include using mass timber, carbon concrete, and any other materials. (b) Minimum