The board of county commissioners (hereinafter called the county board) is empowered to find by resolution the existence of a necessity in such county for organized legal aid. Such resolution shall specify the amount of county funds thereby to be allocated for and expended in the operation of a legal aid bureau during the period of the fiscal year or the remainder thereof. Within ten days after the passage of such a resolution, the commissioners shall cause a certified copy to be transmitted to the board of governors of the Washington State Bar Association (hereinafter called the bar board).