For purposes of this chapter:

(1) A contribution by a political committee with funds that have all been contributed by one person who exercises exclusive control over the distribution of the funds of the political committee is a contribution by the controlling person.

(2) Two or more entities are treated as a single entity if one of the two or more entities is a subsidiary, branch, or department of a corporation that is participating in an election campaign or making contributions, or a local unit or branch of a trade association, labor union, or collective bargaining association that is participating in an election campaign or making contributions. All contributions made by a person or political committee whose contribution or expenditure activity is financed, maintained, or controlled by a trade association, labor union, collective bargaining organization, or the local unit of a trade association, labor union, or collective bargaining organization are considered made by the trade association, labor union, collective bargaining organization, or local unit of a trade association, labor union, or collective bargaining organization.

(3) The commission shall adopt rules to carry out this section and is not subject to the time restrictions of RCW 42.17A.110(1).