Closures for Winter
December 2, 2013- Acadia is now in winter mode. Most of Park Loop Road, including Cadillac Mountain Road, is closed. Still open is the Ocean Drive section, from Schooner Head overlook to Otter Cliff Road, and Jordan Pond area via Jordan Pond Road. More »
Laws & Policies
Enabling Legislation and Public Laws
Park rangers enforce a number of federal regulations in the park, including the Code of Federal Regulations, Title 36 (36 CFR), and the United States Code, Titles 16, 18, and 21.
Within 36 CFR, park superintendents are granted the right to make park-specific regulations to maintain public health and safety, protect environmental or scenic values, protect natural and cultural resources, aid in scientific research, provide for equitable use of facilities, and avoid conflict among visitor use activities. These park-specific regulations are found in the Superintendent's Compendium. Included below is a partial list of park regulations.
It is illegal to be in the park when under the influence of alcohol or controlled substances. The possession of alcoholic beverages by a minor (less than 21 years old) is prohibited.
All motorized vehicles are prohibited on park trails and carriage roads. All-terrain vehicles are not allowed anywhere in the park.
Camping is permitted only in designated campsites at Blackwoods, Seawall, and Duck Harbor (Isle au Haut) Campgrounds. For complete camping regulations, click here.
The possession or use of fireworks or firecrackers is prohibited.
Fishing is permitted in accordance with State of Maine laws. For more information, see Fishing.
The use of horses and other pack animals is permitted on the certain trails, routes, and roads in the park. For more information, see Horseback Riding.
The park is open 24 hours a day. However, Bass Harbor Head Lighthouse closes to visitors and motor vehicles at dark, while Carroll Homestead, Lake Wood, and Thompson Island Picnic Area are closed to motor vehicles at dark.
Hunting and trapping are prohibited.
Roller skates, rollerblades, roller skis, skateboards, and any other coasting devices are permitted on roads closed to automobiles.
A number of islands in the park are closed at certain times of the year to protect nesting bird species. For more information, see Boating.
Parking is limited to specific areasin the park. For more information, click here.
Pets must be leashed (six feet or less) or otherwise physically restrained at all times. For more information, click here.
Permits are required for activities such as scientific research and collecting, commercial photography/filming, commercial tours and activities, etc. Please see the Superintendent's Compendiumfor a complete list of activities and events that require a permit.
The possession, injury, destruction, removal, or disturbance of park property or natural resources, including animals, plants, minerals, cultural, and archaeological objects is prohibited. This includes collecting rocks, cobbles, plants, marine organisms, other natural materials, and historic objects and artifacts.
RVs are permitted in the park, but some areas are not accessible due to low bridge heights or limited turnaround space. For more information, see Vehicle Restrictions.
Federal law requires that seat belts are worn when driving or riding as a passenger in a national park.
Snowmobiles are permitted in certain areas of the park.
Did You Know?
Since 1999, propane-powered Island Explorer buses have carried more than two million passengers in Acadia National Park, eliminating more than 685,000 automobile trips and preventing 6,444 tons of greenhouse gases. The fare-free buses are supported by your entrance fees. More...