; and of which $480,000,000 shall remain available until expended, of which $400,000,000 shall be available for seismic improvement projects and seismic program management activities, including for projects that would otherwise be funded by the Construction, Minor Projects, Medical Facilities or National Cemetery Administration accounts: Provided , That except for advance planning activities, including needs assessments which may or may not lead to capital investments, and other capital asset management related activities, including portfolio development and management activities, and investment strategy studies funded through the advance planning fund and the planning and design activities funded through the design fund, including needs assessments which may or may not lead to capital investments, and salaries and associated costs of the resident engineers who oversee those capital investments funded through this account and contracting officers who manage specific major construction projects, and funds provided for the purchase, security, and maintenance of land for the National Cemetery Administration through the land acquisition line item, none of the funds made available under this heading shall be used for any project that has not been notified to Congress through the budgetary process or that has not been approved by the Congress through statute, joint resolution, or in the explanatory statement accompanying such Act and presented to the President at the time of enrollment: Provided further , That funds made available under this heading for fiscal year 2019, for each approved project shall be obligated: (1) by the awarding of a construction documents contract by September 30, 2019