(1) The Agency for Workforce Innovation shall contract with the Department of Revenue, through an interagency agreement, to perform the duties of the tax collection service provider and provide other unemployment tax collection services under this chapter. Under the interagency agreement, the tax collection service provider may only implement:
(a) The provisions of this chapter conferring duties upon the tax collection service provider.
(b) The provisions of law conferring duties upon the Agency for Workforce Innovation which are specifically delegated to the tax collection service provider in the interagency agreement.
(2)(a) The Department of Revenue is considered to be administering a revenue law of this state when the department implements this chapter, or otherwise provides unemployment tax collection services, under contract with the Agency for Workforce Innovation through the interagency agreement.