How does the Check Out Washington Discover Pass work? We mail the pass directly to you, with a stamped return envelope to send it back. The pass can be used for park visits for up to 7 days. The pass checks out for 14 days (includes mailing time) and may be used on lands managed by: Washington State Parks, Washington State Department of Natural Resources, and Washington Department of Fish & Wildlife. Limit one pass per household every 90 days.