Zone | Ambient Illumination | Statewide Default Location | Moving Up to Higher Zones | Moving Down to Lower Zones |
LZ0 | Very Low | Undeveloped areas of government designated parks, recreation areas, and wildlife preserves. | Undeveloped areas of government designated parks, recreation areas, and wildlife preserves can be designated as Z1 or LZ2 if they are contained within such a zone. | Not applicable |
LZ1 | Low | Rural areas, as defined by the 2020 U.S. Census. These areas include: single or dual family residential areas, parks, and agricultural zone districts, developed portion of government designated parks, recreation areas, and wildlife preserves. Those that are wholly contained within a higher lighting zone may be considered by the local government as part of that lighting zone. | Developed portion of a government designated park, recreation area, or wildlife preserve, can be designated as LZ2 or LZ3 if they are contained within such a zone. Retail stores, located in a residential neighborhood, and rural town centers; can be designated as LZ2 if the business operates during hours of darkness. | Not applicable |
LZ2 | Moderate | Urban areas, as defined by the 2020 U.S. Census. The following building types may occur here: multifamily housing, mixed use residential neighborhoods, religious facilities, schools, and light commercial business districts or industrial zoning districts. | Special districts within a default LZ2 zone may be designated as LZ3 or LZ4 by a local jurisdiction. Examples include special commercial districts or areas with special security considerations located within a mixed-use residential area or city center. | Special districts may be designated as LZ1 by the local jurisdiction, without any size limits. |
LZ3 | Moderately High | Urban areas, as defined by the 2020 U.S. Census. The following building types may occur here: high intensity commercial corridors, entertainment centers, and heavy industrial or manufacturing zone districts. | Special districts within a default LZ3 may be designated as LZ4 by local jurisdiction for high intensity nighttime use, such as entertainment or commercial districts or areas with special security considerations requiring very high light levels. | Special districts may be designated as LZ1 or LZ2 by the local jurisdiction, without any size limits. |
LZ4 | High | None. | Not applicable. | Not applicable. |

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