From cookware to dental floss to stain-resistant fabrics, PFAS, or per- and polyfluoroalkyl substances, pervade modern life. PFAS are a family of thousands of synthetic chemicals that have a variety of unique qualities that make them useful in industrial and consumer product applications. Unfortunately, there is a growing scientific recognition that many PFAS come with a cost to public health and the environment. While federal and state action is just beginning for PFAS and the regulatory landscape is changing quickly, the toxicity of many PFAS has been well-established.

The United States has historically valued free access to most public lands. But federal land management agencies also rely on users’ fee dollars to support critical operations. This tension between “free access” and “user pays” has been an important feature of public land law since the late 1800s. The primary statute at issue is the Federal Lands Recreation Enhancement Act (FLREA), which authorizes fees at some sites while mandating free access at others.