(1) The following terms are used and shall have meanings as defined in chapter 70.105 RCW or WAC 173-303-040 as amended:

(a) Closure;

(b) Dangerous waste;

(c) Department;

(d) Disposal;

(e) Facility;

(f) Operator;

(g) Permit;

(h) Storage; and

(i) Treatment.

(2) When used in this chapter, the following terms have the meanings given below.

(a) "Manage" or "management" means to treat, store, or dispose of mixed waste, or close a mixed waste facility, or perform other activities required under chapter 70.105 RCW.

(b) "Mixed waste" means a dangerous waste that contains both a nonradioactive hazardous component and source, special nuclear, or by-product material subject to the Atomic Energy Act of 1954.

(c) "Mixed waste management fee" or "fee" means an assessment imposed under RCW 70.105.280 against those facilities that store, treat, or dispose of mixed waste. The fee shall also apply to facilities undergoing closure under chapter 70.105 RCW.

(d) For facilities sited by the energy facility site evaluation council under chapter 80.50 RCW, the terms "owner" and "operator" in WAC 173-328-060 and 173-328-070 mean the energy facility site evaluation council.