Section 800.20 - Surety bonds(a) A surety bond shall be executed by the operator and a corporate surety licensed to do business in the State where the operation is located.(b) Surety bonds shall be noncancellable during their terms, except that surety bond coverage for lands not disturbed may be cancelled with the prior consent of the regulatory authority. The regulatory authority shall advise the surety, within 30 days after receipt of a notice to cancel bond, whether the bond may be cancelled on an undisturbed area.48 FR 32959, July 19, 1983, as amended at 81 FR 93381 , Dec. 20, 2016; 82 FR 54972 , Nov. 17, 2017