(1) Except as provided in ORS 30.495 and 30.497, no person may maintain an action for damages against a person for voluntarily providing assistance or advice directly related to:
(a) Mitigating or attempting to mitigate the effects of an actual or threatened discharge of hazardous material; or
(b) Preventing, cleaning up or disposing of or in attempting to prevent, clean up or dispose of any discharge of hazardous material.
(2) Except as provided in ORS 30.495 and 30.497, no state or local agency may assess a civil or criminal penalty against a person for voluntarily providing assistance or advice directly related to:
(a) Mitigating or attempting to mitigate the effects of an actual or threatened discharge of hazardous material; or
(b) Preventing, cleaning up or disposing of or in attempting to prevent, clean up or dispose of any discharge of hazardous material.