I have a 9 day permit for deso, and a niece is now getting married two days before 'entry day' on my permit. No where on the BLM web site do I see anything regarding 'entry date'. I took the full 9 days to give myself slack during the trip, so I have time. Does anyone know if you must put-in on your permit start day? Permit is for Sept., so not the insanity of the rest of the season.