36.—The expenses of the council of a county in relation to the performance of a function under the Housing Acts, 1966 to 1992, shall be charged—

(a) in case the function is performed separately in respect of a county health district, on that county health district,

(b) in case the function is performed as one in respect of a combined area of a county health district and one, or more than one, borough or urban district in the county, on such combined area,

(c) in case the function is the subject of an order under section 23, pursuant to the provisions of such order.