Rule 2330.
The conformance bond shall be in addition to the conformance bonds filed under R 299.2332(a), (b), or (c) and shall be required only if the supervisor of mineral wells determines that the existing conformance bond is not adequate to cover the estimated cost of plugging the well and conducting site restoration or other obligations of the permittee under the order. A person is not required to file additional conformance bonds under this subrule if the person has filed a blanket conformance bond or bonds in an aggregate amount of $400,000.00 or more, under R 299.2332(d). Subject to the provisions of R 299.2333, the additional conformance bond shall be released when the permittee has complied with all provisions of orders of the supervisor of mineral wells.
Mich. Admin. Code R. 299.2330