§ 35-11-418 — Cash or securities in lieu of bond

(a) For coal mining operations, in lieu of a bond, the
operator or its principal may deposit federally insured
certificates of deposit payable to the Wyoming department of
environmental quality, or cash, or government securities, or
irrevocable letters of credit issued by a bank organized to do
business in the United States, or all four (4).
(b) For noncoal mining operations that take place on land
that is not owned or operated by the United States or a federal
agency, in lieu of a bond, the operator or the operator's
principal may deposit federally insured certificates of deposit
payable to the Wyoming department of environmental quality, or
cash, or government securities, or irrevocable letters of credit
issued by a bank or credit union organized to do business in the
United States, or all four (4).
(c) Irrevocable letters of credit deposited under this
section shall be issued by a bank that is insured by the federal
deposit insurance corporation or a credit union that is insured
by the national credit union administration.