The short answer is yes, and not buying them can be expensive.
If you are heading out into the outdoors, no matter where you are going, you need to research and find out if there are permits required to have before going. These could be day passes, annual passes, or lifetime passes, and everything depends on the location you are headed.
Reading the fine print is extremely important. I found this out the hard way. When I was living in Tucson, a coworker and I decided to hike in a popular area in town. She had a pass that she thought transferred to any vehicle as long as it was visible in the car. We went for the hike and came back to a ticket for $70. Upon further inspection and reading the super fine print, it reads “not transferrable across vehicles.” We both thought that was odd, considering she had paid for the pass and it was in the vehicle, but every place has its own rules.
After this, I always make sure that you are looking up the places you are going and reading up on what passes and permits you might need. This post will get a little long, so bear with me.