14 CFR § 101.15
Notice requirements
July 13, 2020
No person may operate an unshielded moored balloon or kite more than 150 feet above the surface of the earth unless, at least 24 hours before beginning the operation, he gives the following information to the FAA ATC facility that is nearest to the place of intended operation:
(a) The names and addresses of the owners and operators.
(b) The size of the balloon or the size and weight of the kite.
(c) The location of the operation.
(d) The height above the surface of the earth at which the balloon or kite is to be operated.
(e) The date, time, and duration of the operation.