Wash. Admin. Code § 51-55-0200
202 Definitions.
ACCESSORY STRUCTURE. A building or structure used to shelter or support any material, equipment, chattel or occupancy other than a habitable building, or a habitable building or structure that is accessory to and incidental to that of the dwelling(s) and that is located on the same lot.
BUILDING OFFICIAL. Not adopted.
EGREGIOUS DANGER. A danger that if left unmitigated, places the occupants or property in immediate danger.
FUEL, HEAVY. Vegetation consisting of round wood 3 to 8 inches (76 to 203 mm) in diameter. See Fuel Models G, I, J, K, and U described in Chapter 9.
FUEL, LIGHT. Vegetation consisting of herbaceous plants and round wood less than 1/4-inch (6.4 mm) in diameter. See Fuel Models A, C, E, L, N, P, R, and S described in Chapter 9.
FUEL, MEDIUM. Vegetation consisting of round wood 1/4 to 3 inches (6.4 mm to 76 mm) in diameter. See Fuel Models B, D, F, H, O, Q, and T described in Chapter 9.
HIGH-DENSITY VEGETATED AREA. An area defined by a square determined in accordance with Section 302.3.1, with 75 percent or more vegetation.
WASHINGTON WILDLAND-URBAN INTERFACE MAP (WA-WUI). The Washington department of natural resources map designating urban areas, wildland-urban interface, wild-land-urban intermix, wildlands, and long-term nonbuildable areas, designated as the Washington wildland-urban interface as mapped for 2019 by the Washington state department of natural resources-wildfire and forest health divisions under consultation from the USFS Rocky Mountain Research Station.
WILDLAND-URBAN INTERFACE/INTERMIX AREA. That geographical area where structures and other human development meets or intermingles with wildland or vegetative fuels.
Wash. Admin. Code § 51-55-0200