The definitions in this section apply throughout this chapter unless the context clearly requires otherwise.

(1) "Coal tar" means a viscous substance obtained by the destructive distillation of coal and containing levels of polycyclic aromatic hydrocarbons in excess of ten thousand milligrams per kilogram. "Coal tar" includes, but is not limited to, refined coal tar, high temperature coal tar, coal tar pitch, or any substance identified by chemical abstract number 65996-93-2.

(2) "Coal tar pavement product" means a material that contains coal tar that is intended for use as a pavement sealant.

(3) "Department" means the department of ecology.