The first thing I would make sure of is that you don't let this situation come between you and your husband. I had the same problem with my 16 yr. old son and husband, though we are now at the point where we both have finally agreed to the same rules, (hubby and I).
Sitting down with hubby, alone, and having a good long talk should really help you both. It's good to be on the "same side" with your spouse. And It's really not easy because someone usually has to compromise. I'm not sure, but I think you are asking for help in him letting her have more freedom to go out and do things with her friends, correct?
If I am right, here are my suggestions. If she has a cell phone, (and she should in my opinion because she IS at the age where she could be doing things), she can check in with you at the times that you and your husband set. We had our now 27 yr. old son call us when he got to his friends house, call when he left that friends to go to another friends, and call again when he got there. He hated it, said no other parents made their kids check in like that and on and on.
But my husband and I felt that the only way we could let him go and hang out, going from one place to another, without US going crazy, was to have him call so we knew he was safe. We know the statistics of teens and cars, but we also knew we had to let him go and have fun! If they haven't learned right from wrong by 16, then they never will. Plus, you have to learn to trust them.
My husband always has said," give the kids enough rope to prove themselves, and if they mess up, reel it in and now they
have to figure out what to do to earn our trust again". It has worked with our first son, and is working with our almost 17 yr. old now.
It took me awhile to let go, I have to say. Personal experience had me wanting to keep them home, and let the other kids come here. But I know that we taught our kids to be careful, respectful, and make smart choices. There comes a time when you need to let them go and show you what they learned.
Hope this lengthy advice helps you and your family out!
R.