Valid for 12 months from the month purchased, the parking permit is honored at all 25 Oregon State Parks that charge a parking fee. The permit is valid only in parks operated by Oregon State Parks (see map of parks charging a day-use parking fee), and cannot be used for camping or extra vehicle fees.*
If you're camping at a state park, you don't need a day-use parking permit. Just display your current state park camping receipt on your dashboard.
*Permit has monetary value--will not be replaced if lost or stolen.