(a) A miner shall ensure that reclamation work complies with an approved reclamation plan. If changing product prices, economics, financing, unanticipated conditions, or suspension of mining operations necessitates a change in the reclamation plan, the miner shall submit an amended reclamation plan for approval before modifying the approved reclamation work.
(b) If new or changed statutory or regulatory requirements affect reclamation under an approved reclamation plan, the miner must submit an amended reclamation plan for approval to demonstrate that reclamation occurring after the effective date of the new requirements will comply with those new requirements.