(1) All swine facilities regulated by section 39-104A, Idaho Code, and this chapter shall provide financial assurances demonstrating financial capability to meet requirements for closure of the facilities and remediation. Requirements for financial assurances shall be determined by the agency as set forth in rule. Financial assurances may include any mechanism or combination of mechanisms meeting the requirements established by agency rule including, but not limited to, surety bonds, trust funds, irrevocable letters of credit, insurance and corporate guarantees. The mechanism(s) used to demonstrate financial capability must be legally valid, binding and enforceable under applicable law and must ensure that the funds necessary to meet the costs of closure and remediation will be available whenever the funds are needed. The director may retain financial assurances for up to five (5) years after closure of a facility to ensure proper closure and remediation, as defined by rule.
(2)  Nothing in this section prohibits the boards of county commissioners of any county or the governing body of any city from adopting regulations that are more stringent or that require greater financial assurances than those imposed by the department of environmental quality.