Nothing in ORS 453.396 to 453.412 shall require units of local government to pay a fee imposed under the schedules established under ORS 453.402 (2)(a) and (b) because of the use of material which would otherwise be subject to a fee under ORS 453.396 to 453.414, if the use of such material by the unit of local government is specifically required by a state or federal law or rule or if the use of such material is reasonably necessary to enable the unit of local government to meet a standard imposed by state or federal law or rule, or is the by-product of processes employed to meet a standard imposed by state or federal rule or law. [1989 c.833 §135]
Oregon Legal Code