Environmental quality-irrevocable letters of credit.

HB 41 amends Wyoming law to clarify which financial institutions can issue irrevocable letters of credit (a type of financial guarantee) that environmental operators may use instead of bonds. It specifies that these letters must be issued by U.S.-organized banks insured by the FDIC or credit unions insured by the NCUA. The bill directly affects mining operators (especially noncoal operations on non-federal land) and solid waste facility operators who need to post financial security with the Wyoming Department of Environmental Quality. The changes apply to letters of credit issued on or after July 1, 2025, and require the Environmental Quality Council to create implementing rules.