Who is affected and how:

• Oil, gas, and mineral companies: Prevented from receiving new Arctic OCS leases or extensions for exploration, development, or production in the areas defined as "Arctic," halting plans or proposals for offshore resource projects in those waters.

• Federal agencies (Department of the Interior and bureaus managing OCS leasing): Must stop issuing or approving new leases and cannot extend existing authorizations in the Arctic OCS; agency leasing plans, permitting work, and program revenue projections will be altered.

• Alaska and Arctic communities, including Tribal communities: Reduced risk of new Arctic offshore development and associated spill or disturbance risks, which may protect subsistence resources and local environments; conversely, potential loss of jobs, economic activity, or state/federal revenues tied to leasing would affect local economies that had expected development benefits.

• Commercial and recreational fishers and marine ecosystems: Short-term and long-term protections from new offshore drilling or mining activity in Arctic OCS areas could reduce environmental risk to fisheries and marine habitats.

• Energy markets and national energy planning: Limits on Arctic offshore production constrain potential future domestic supply options, which could factor into broader energy planning and infrastructure decisions.

• States and local governments: Possible reduction in future lease-related revenue and economic activity; no new federal funding is provided to offset such impacts.

Legal and administrative effects:

• The broad "notwithstanding any other law" language increases the likelihood of litigation by affected industry or states asserting existing rights or expectations; courts may need to resolve conflicts involving existing contracts or permit rights.

Overall, the legislation acts as a straightforward federal ban on new and extended Arctic OCS leasing for oil, gas, and minerals, with environmental protection benefits for Arctic ecosystems and communities but economic and revenue trade-offs for industry, some local economies, and federal/state leasing receipts.