The Secretary concerned may decide, at the sole discretion of the Secretary concerned, to cover the costs of a portion of an approved project using Federal funds appropriated or otherwise available to the Secretary for the same purposes as the project.
The unit of National Forest System land or Bureau of Land Management District concerned,[1] shall not commence a project until the project funds, or other funds described in section 7123(a)(2) of this title required to be transferred under paragraph (1) for the project, have been made available by the Secretary concerned.
For the second and subsequent fiscal years of a multiyear project to be funded in whole or in part using project funds, the unit of National Forest System land or Bureau of Land Management District concerned shall use the amount of project funds required to continue the project in that fiscal year according to the agreement entered into under subsection (a).
The Secretary concerned shall suspend work on the project if the project funds required by the agreement in the second and subsequent fiscal years are not available.