RCW 70A.425.070: "Package" defined.

"Package" means the immediate container or wrapping in which any household substance is contained for consumption, use, or storage by individuals in or about the household, and, for purposes of RCW 70A.425.110(1)(b), also means any outer container or wrapping used in the retail display of any such substance to consumers. Such term does not include:

(1) Any shipping container or wrapping used solely for the transportation of any household substance in bulk or in quantity to manufacturers, packers, or processors, or to wholesale or retail distributors thereof; or

(2) Any shipping container or outer wrapping used by retailers to ship or deliver any household substance to consumers unless it is the only such container or wrapping.