"DHS has established a set of consequence thresholds to identify sites that are considered CIKR Tier 1 assets, and thus eligible for higher funding levels. To be considered CIKR Tier 1, the asset or system must be documented to have the potential, if successfully destroyed or disrupted through terrorist attack, to cause major national or regional impacts. These include combinations of the following characteristics: (1) Nationally significant loss of life (2) Severe cascading economic impacts (3) Mass evacuations with relocation for an extended period of time (4) Impact to a city, region, or sector of the economy due to contamination, destruction, or disruption of vital services to the public (5) Severe national security impacts DHS worked with the SSAs to establish sector-by-sector criteria for CIKR Tier 2 assets that would identify those CIKR sites having inherently greater consequence potential than other assets within their sectors. DHS worked with States to identify assets that met these criteria. Sites nominated by the States through this process were subsequently validated by the Federal SSAs. CIKR sites that may otherwise meet the criteria identified above, but are not being addressed through the FY 2008 BZPP, include: (6) Sites that have been sufficiently addressed through prior grants (7) Sites eligible for funding through other HSGP and/or grant program funding that more directly address risks associated with the specific site (8) Sites, particularly those associated with systems, whose risks DHS has determined may be more appropriately addressed in future program years". (DHS, Fiscal Year 2008 Buffer Zone Protection Program Guidance and Application Kit, February 2008, p. 6)