(1) Any political committee that receives exempt contributions as defined by RCW 42.17A.405 and WAC 390-17-060 shall keep the contributions in a separate bank account. Exempt contributions commingled with contributions subject to contribution limits are presumed to be subject to the limits. Expenditures to promote candidates or which are made for purposes other than those specified in RCW 42.17A.405 shall not be made with funds from the exempt contributions account.

(2)(a) Separate campaign disclosure reports shall be completed and filed for an exempt contributions account.

(b) Political committees maintaining an exempt contributions account shall make known the existence of the account by filing a statement of organization for the account pursuant to RCW 42.17A.205.

(c) Political committees maintaining an exempt contributions account shall be subject to the provisions of chapter 42.17A RCW and file the disclosure reports required by this chapter for the account pursuant to RCW 42.17A.235.

(3) Contributors shall not use a single written instrument to make simultaneous contributions to an exempt contributions account and any other committee account; separate written instruments must be used to make contributions to an exempt contributions account.