CK Foto // ShutterstockThe landscape of American travel is shifting with a new policy targeting international visitors. This “Americans First” initiative is one of the most substantial changes to the National Park Service (NPS) fee structure in decades. Under the new rules, international visitors 16 and older must pay a $100 per person surcharge on top of the standard vehicle entry fee. Not every park in the National Park System is subject to the new surcharge. The $100 fee applies to the following locations:Acadia National Park (Maine) Bryce Canyon National Park (Utah) Everglades National Park (Florida) Glacier National Park (Montana) Grand Canyon National Park (Arizona) Grand Teton National Park (Wyoming) Rocky Mountain National Park (Colorado) Sequoia & Kings Canyon National Parks (California) Yellowstone National Park (Wyoming/Montana/Idaho) Yosemite National Park (California) Zion National Park (Utah)Visitors to lesser-known parks or national monuments generally do not face the $100 surcharge, though the $250 annual pass requirement for broad access remains in effect across the system.