Abandonment means the voluntary relinquishment of property with no intent to retain possession.

Administrative activities means those activities conducted under the authority of the Presidio Trust for the purpose of safeguarding persons or property, implementing management plans and policies developed in accordance and consistent with the regulations in this chapter, or repairing or maintaining government facilities.

Airboat means a vessel that is supported by the buoyancy of its hull and powered by a propeller or fan above the waterline. This definition should not be construed to mean a “hovercraft,” that is supported by a fan-generated air cushion.

Aircraft means a device that is used or intended to be used for human flight in the air, including powerless flight.

Archeological resource means material remains of past human life or activities that are of archeological interest and are at least 50 years of age. This term includes, but shall not be limited to, objects made or used by humans, such as pottery, basketry, bottles, weapons, weapon projectiles, tools, structures or portions of structures, pit houses, rock paintings, rock carvings, intaglios, or any portion or piece of the foregoing items, and the physical site, location or context in which they are found, or human skeletal materials or graves.

Authorized emergency vehicle means a vehicle in official use for emergency purposes by a Federal agency or an emergency vehicle as defined by State law.

Authorized person means an employee or agent of the Presidio Trust with delegated authority to enforce the provisions of this chapter.

Bicycle means every device propelled solely by human power upon which a person or persons may ride on land, having one, two, or more wheels, except a manual wheelchair.

Board means the Board of Directors of the Presidio Trust or its designee.

Boundary means the limits of lands or waters administered by the Presidio Trust as specified by Congress, or denoted by presidential proclamation, or recorded in the records of a state or political subdivision in accordance with applicable law, or published pursuant to law, or otherwise published or posted by the Presidio Trust.

Camping means the erecting of a tent or shelter of natural or synthetic material, preparing a sleeping bag or other bedding material for use, parking of a motor vehicle, motor home or trailer, or mooring of a vessel for the apparent purpose of overnight occupancy.

Carry means to wear, bear, or have on or about the person.

Controlled substance means a drug or other substance, or immediate precursor, included in schedules I, II, III, IV, or V of part B of the Controlled Substance Act (21 U.S.C. 812) or a drug or substance added to these schedules pursuant to the terms of the Act.

Cultural resource means material remains of past human life or activities that are of significant cultural interest and are less than 50 years of age. This term includes, but shall not be limited to, objects made or used by humans, such as pottery, basketry, bottles, weapons, weapon projectiles, tools, structures or portions of structures, or any portion or piece of the foregoing items, and the physical site, location, or context in which they are found, or human skeletal materials or graves.

Developed area means roads, parking areas, picnic areas, campgrounds, or other structures, facilities or lands located within development and historic zones depicted on the land management and use map for the area administered by the Presidio Trust.

Downed aircraft means an aircraft that cannot become airborne as a result of mechanical failure, fire, or accident.

Executive Director means the Executive Director of the Presidio Trust or his or her designee.

Firearm means a loaded or unloaded pistol, rifle, shotgun or other weapon which is designed to, or may be readily converted to, expel a projectile by the ignition of a propellant.

Fish means any member of the subclasses Agnatha, Chondrichthyes, or Osteichthyes, or any mollusk or crustacean found in salt water.

Fishing means taking or attempting to take fish.

Hunting means taking or attempting to take wildlife, except trapping.

Legislative jurisdiction means lands and waters under the exclusive or concurrent jurisdiction of the United States.

Manual wheelchair means a device that is propelled by human power, designed for and used by a mobility-impaired person.

Motor vehicle means every vehicle that is self-propelled and every vehicle that is propelled by electric power, but not operated on rails or upon water, except a snowmobile and a motorized wheelchair.

Motorcycle means every motor vehicle having a seat for the use of the rider and designed to travel on not more than three wheels in contact with the ground, but excluding a tractor.

Motorized wheelchair means a self-propelled wheeled device, designed solely for and used by a mobility-impaired person for locomotion, that is both capable of and suitable for use in indoor pedestrian areas.

Net means a seine, weir, net wire, fish trap, or other implement designed to entrap fish, except a hand-held landing net used to retrieve fish taken by hook and line.

Nondeveloped area means all lands and waters within the area administered by the Presidio Trust other than developed areas.

Operator means a person who operates, drives, controls, otherwise has charge of or is in actual physical control of a mechanical mode of transportation or any other mechanical equipment.

Pack animal means horses, burros, mules or other hoofed mammals when designated as pack animals by the Executive Director.

Permit means a written authorization to engage in uses or activities that are otherwise prohibited, restricted, or regulated.

Person means an individual, firm, corporation, society, association, partnership, or private or public body.

Pet means a dog, cat or any animal that has been domesticated.

Possession means exercising direct physical control or dominion, with or without ownership, over property, or archeological, cultural or natural resources.

Practitioner means a physician, dentist, veterinarian, scientific investigator, pharmacy, hospital or other person licensed, registered or otherwise permitted by the United States or the jurisdiction in which such person practices to distribute or possess a controlled substance in the course of professional practice.

Presidio Trust and Trust mean the wholly-owned federal government corporation created by the Presidio Trust Act.

Presidio Trust Act means Title I of Public Law 104-333, 110 Stat. 4097, as the same may be amended.

Presidio Trust road means the main-traveled surface of a roadway open to motor vehicles, owned, controlled or otherwise administered by the Presidio Trust.

Printed matter means message-bearing textual printed material such as books, pamphlets, magazines and leaflets and does not include other forms of merchandise, such as posters, coffee mugs, sunglasses, audio or videotapes, T-shirts, hats, ties, shorts and other clothing articles.

Public use limit means the number of persons; number and type of animals; amount, size and type of equipment, vessels, mechanical modes of conveyance, or food/beverage containers allowed to enter, be brought into, remain in, or be used within a designated geographic area or facility; or the length of time a designated geographic area or facility may be occupied.

Refuse means trash, garbage, rubbish, waste papers, bottles or cans, debris, litter, oil, solvents, liquid waste, or other discarded materials.

Services means, but is not limited to, meals and lodging, labor, professional services, transportation, admission to exhibits, use of telephone or other utilities, or any act for which payment is customarily received.

Smoking means the carrying of lighted cigarettes, cigars or pipes, or the intentional and direct inhalation of smoke from these objects.

Snowmobile means a self-propelled vehicle intended for travel primarily on snow, having a curb weight of not more than 1000 pounds (450 kg), driven by a track or tracks in contact with the snow, and steered by a ski or skis in contact with the snow.

State means a State, territory, or possession of the United States.

State law means the applicable and nonconflicting laws, statutes, regulations, ordinances, infractions and codes of the State(s) and political subdivision(s) within whose exterior boundaries the area administered by the Presidio Trust or a portion thereof is located.

Take or taking means to pursue, hunt, harass, harm, shoot, trap, net, capture, collect, kill, wound, or attempt to do any of the aforementioned.

Traffic means pedestrians, ridden or herded animals, vehicles and other conveyances, either singly or together while using any road, trail, street or other thoroughfare for purpose of travel.

Traffic control device means a sign, signal, marking or other device placed or erected by, or with the concurrence of, the Executive Director for the purpose of regulating, warning, guiding or otherwise controlling traffic or regulating the parking of vehicles.

Trap means a snare, trap, mesh, wire or other implement, object or mechanical device designed to entrap or kill animals other than fish.

Trapping means taking or attempting to take wildlife with a trap.

Underway means when a vessel is not at anchor, moored, made fast to the shore or docking facility, or aground.

Unloaded, as applied to weapons and firearms, means that:

Vehicle means every device in, upon, or by which a person or property is or may be transported or drawn on land, except snowmobiles and devices moved by human power or used exclusively upon stationary rails or track.

Vessel means every type or description of craft, other than a seaplane on the water, used or capable of being used as a means of transportation on water, including a buoyant device permitting or capable of free flotation.

Weapon means a firearm, compressed gas or spring-powered pistol or rifle, bow and arrow, crossbow, blowgun, speargun, hand-thrown spear, slingshot, irritant gas device, explosive device, or any other implement designed to discharge missiles, and includes a weapon the possession of which is prohibited under the laws of the State in which the area administered by the Presidio Trust or portion thereof is located.

Wildlife means any member of the animal kingdom and includes a part, product, egg or offspring thereof, or the dead body or part thereof, except fish.