The following words and phrases as used herein have the following meanings, unless context clearly dictates otherwise:

(1) "Anti-litter symbol" means the standard symbol adopted herein by the department.

(2) "Department" means the Washington state department of ecology.

(3) "Litter" means all waste materials including, but not limited to, disposable packages or containers susceptible to being dropped, deposited, discarded or otherwise disposed of upon any property in the state, and solid waste that is illegally dumped, but not including the wastes of primary processes of mining, logging, sawmilling, farming or manufacturing.

(4) "Litter receptacle" means containers for the disposal of litter of not more than 60-gallon capacity: Provided, That special containers of larger capacity such as those referred to as "dumpsters," and garbage containers, or other waste containers serving single or multifamily residences are not included within this definition and their use is in no way regulated or affected by this chapter.

(5) "Person" means any industry, public or private corporation, copartnership, association, firm, individual, or other entity whatsoever.

(6) "Public place" means any area that is used or held out for the use of the public whether owned and operated by public or private interests, but not including indoor areas. An indoor area means any enclosed area covered with a roof and protected from moisture and wind.