(2) When two or more counties have counselors appointed to serve the counties jointly, each county shall provide funds to pay its share of the costs and expenses of the employment of counselors and maintaining juvenile departments. The method of determining the portion of such costs and expenses each county is to bear must be provided in the agreement made between the counties under ORS 419A.010 (1)(b). [1993 c.33 §16; 2003 c.396 §5; 2021 c.489 §35]