Tier I
Tier I is basic capacity infrastructure with limited redundancy and likely site-wide shutdowns for maintenance or repair. It is usually not suitable for mission-critical hyperscale or AI loads without additional mitigations.
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Connectivity
Lit service
Lit service is active network service delivered over fiber using provider-managed electronics. It is easier to consume than dark fiber but may offer less control over capacity, routing, and upgrades.
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NEPA
National Environmental Policy Act is the federal environmental review framework for federal actions. Data center projects may encounter NEPA when federal permits, funding, land, or agency actions are involved.
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Special Flood Hazard Area is a FEMA-mapped area with special flood, mudflow, or flood-related erosion hazards. It generally represents higher regulatory and insurance concern and should be treated as a major site-screening layer.
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