This rulemaking would revise Locatable Minerals regulations at 36 CFR 228.13 to allow AA or AAA-rated investments within trust funds as financial guarantee for long-term post-closure obligations.  This would create consistency with existing BLM regulations and respond to an immediate programmatic need to provide a viable mechanism for financing long-term, post-closure environmental obligations, which is crucial to the stewardship and restoration of NFS lands affected by mining. This final rule will help meet the Administration's priority to improve service delivery, customer experience, and reduce administrative burdens for those accessing public benefits and services.