Upper Colorado and San Juan River Basins Endangered Fish Recovery Programs Reauthorization Act of 2023

This bill reauthorizes two existing federal programs focused on recovering endangered and threatened fish species in the Upper Colorado River Basin and San Juan River Basin. It extends funding through fiscal year 2031 (previously ending in 2024), authorizing $50 million annually adjusted for inflation, and updates definitions to explicitly include "threatened" species. The programs continue to rely on partnerships with states, tribes, water users, and environmental groups to fund habitat restoration and fish conservation efforts. The bill also clarifies that federal funds can include power revenues from the Colorado River Storage Project and streamlines how non-Federal contributions are accepted.