The main purpose of this legislation is to modify the Mineral Leasing Act to allow for a new payment structure for certain coal leases. Specifically, it introduces the option for bonus payments to be made in installments rather than as a lump sum. This change aims to make it easier for companies to manage their financial commitments when acquiring coal leases. The key provision of this legislation is the introduction of a deferred bonus payment system. Under this system, companies that win a lease will pay the bonus in ten equal annual installments.