Agricultural Airstrips (Agstrips). An agstrip is any designated landing area maintained solely for temporary or occasional use by aircraft engaged in aerial application of chemicals, fertilizers, or other substances to agricultural or forest lands. If an agstrip is in an area where operations do not endanger lives or property on the ground and do not interfere with other authorized use of navigable airspace, the agstrip need not be approved, licensed, or registered by the Administration. Responsibility for the agstrip rests solely with the user, who shall comply with the following: Use for any aeronautical purpose other than agricultural or forest aerial application is prohibited; Prior permission from the property owner shall be obtained; The strip shall be of sufficient size to accommodate the aircraft operating off the strip; Persons and property on the ground may not be endangered. Balloon and Glider Landing Areas. If a balloon or glider landing area is located where operations do not endanger lives or property on the ground and do not interfere with other authorized use of the navigable airspace, the landing area need not be approved, licensed, or registered by the Administration. Operations at the landing area shall be carried out in a prudent manner and with due regard for safety. Emergency Landing Areas. None of the airport standards prescribed by these regulations apply to aircraft operation in an emergency situation by public safety agencies, such as those with police and fire control responsibilities, or by a private or commercial operator when performing these functions under contract or control to a public safety agency, if a landing and take-off is necessary to protect life or property. These operations shall be carried out in a prudent manner and with due regard for safety.