We just had our engagement photo shoot this morning. My photographer had told us a while back that you really don't need a permit from the National Parks Service (NPS) unless it's a wedding party. I found a post here mentioning that you do need one for picture taking session at the monumemts, so I decided to check it out anyway. And the NPS said if it is a commercial photography shoot. I mentioned that it's not commercial as I'm not going to sell the pics. They said if I were paying someone to take my photo, then that qualifies as commercial. It's a $50 charge for the permit and an additional location fee of $50 for having pics at the Jefferson and Lincoln. Well, even with the permit, they didn't allow us even near the columns of either monuments. To all those thinking of having pics at the monument. It might be better to do it discretely and pretend you and your photog are tourists taking photos. It was kind of a downer, but it was good practice to just let it go. My FI thinks I should complain to NPS.