The legal issues that a BASE jumper must consider concern permissions to use the object that is being jumped, and the area used for landing.

Covert BASE jumps are often made from tall buildings and antenna towers. The general reluctance of the owners of these objects to allow their object to be used as a platform leads many BASE jumpers to covertly attempt jumps. While BASE jumping itself is not illegal, the covert nature of accessing objects usually necessitates trespassing on an object. Jumpers who are caught can expect to be charged with trespassing, as well as having other charges like breaking and entering, reckless endangerment, vandalism, or other such charges pressed against them. Other people accompanying the jumper, such as ground crew, may also face charges.

In some jurisdictions it may be permissible to use land until specifically told not to. Perrine Bridge in Twin Falls, Idaho, is the only manmade structure in the United States where BASE jumping is allowed year-round without a permit.

Once a year, on the third Saturday in October ('Bridge Day') at the New River Gorge Bridge in Fayetteville, West Virginia, permission to BASE jump has explicitly been granted. The New River Gorge Bridge deck is 876 feet (267 m) above the river. A rock dropped from the deck will hit the water in 8.8 seconds. This annual event attracts about 450 BASE jumpers, and nearly 200,000 spectators. If the conditions are good, in the 6 hours that it is legal, there may be over 800 jumps at Bridge Day. For many skydivers who would like to try BASE jumping, this will be the only fixed object from which they ever jump.

However the National Park Service has the authority to ban specific activities in US National Parks, and has done so for BASE jumping. The authority comes from 36 CFR 2.17(3), which prohibits, "Delivering or retrieving a person or object by parachute, helicopter, or other airborne means, except in emergencies involving public safety or serious property loss, or pursuant to the terms and conditions of a permit." Under that Regulation, BASE is not banned, but is allowable if a permit is issued by the Superintendent, which means that a mechanism to allow BASE in National Parks was always in place. However, National Park Service Management Policies have stated that BASE "is not an appropriate public use activity within national park areas..." (2001 Management Policy 8.2.2.7.) This meant that there could be no permitted air delivery. It is noted, however, that this policy has a proposed change that strikes the language banning it outright and replacing it with a different test. Whether this will be approved, and whether this will make the granting of permits easier, is open to speculation.

In the early days of BASE jumping, the Service ran a permit scheme under which jumpers could get authorisation to jump El Capitan. This scheme ran for 3 months in 1980 and then collapsed amid allegations of abuse by unauthorised jumpers. Since then, the Service has vigorously enforced the ban, charging jumpers with "aerial delivery into a National Park". One jumper was drowned in the Merced river while being chased by Park Rangers intent on arresting him. Despite this, illegal jumps continue in Yosemite at a rate estimated at a few hundred per year, often at night or dawn. El Capitan, Half Dome and Glacier Point are all used as jump sites.

Other US public land, including land controlled by the Bureau of Land Management, does not ban air delivery, and there are numerous jumpable objects on BLM land.

The legal position is better at other sites and in other countries. For example, in Norway's Lysefjord, BASE jumpers are made welcome. Many sites in the European Alps, near Chamonix and on the Eiger, are also open to jumpers.

Via: WIkipedia
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