Federal water managers are starting to review a crucial 2007 agreement for seven Western states to share drought-diminished water supplies from the Colorado River ahead of talks about revising and renewing it beginning in 2026, U.S. Interior Secretary David Bernhardt said Friday.

Bernhardt called for a report next December, ahead of a deadline set in the older deal, which established a schedule of strict water cutbacks to states if levels keep falling at the key Lake Mead and Lake Powell reservoirs.