US HB831

Establishes the "Non-Federal Funding Account for the Lower Colorado River Multi-Species Conservation Program" in the U.S. Treasury to hold state contributions for the conservation program's non-federal cost share

Requires the Secretary of the Treasury to deposit both unexpended non-federal contributions made before enactment and all future non-federal contributions into the new fund

Authorizes the Secretary of the Treasury to invest unused fund amounts in interest-bearing U.S. obligations, with deposited principal available to the Secretary without further appropriation and interest earnings available subject to appropriations

Mandates transfer of previously contributed funds from the general Treasury to the new account within 90 days of enactment

Shields state parties from responsibility for any investment losses once their contributions are deposited in the fund