; (2) the permit holder has not been subject to sanctions under section 408 or committed a prohibited act under such section; and (3) the permit has not been modified because of emergency considerations. (g) Revocation The Secretary may, pursuant to regulations issued under this Act, revoke an offshore aquaculture permit, if— (1) the permit holder commits a prohibited act under section 408; (2) the permit holder fails to begin offshore aquaculture operations within 2 years from the date the required Federal permits are obtained; or (3) there is an interruption of offshore aquaculture operations of at least 2 years in duration that is unrelated to best management practices or Federal disaster declaration. Such disaster declarations shall be carried out in a manner consistent with title IV of the Robert T. Stafford Disaster Relief and Emergency Assistance Act ( 42 U.S.C. 5170 et seq.). (h) Expiration or revocation Not later than 1 year after the expiration or revocation of an offshore aquaculture permit, a permit holder shall— (1) remove all structures, gear, and other property from the offshore aquaculture facility site