; and (B) land held in trust for an Indian Tribe, on request of the Indian Tribe. (2) Categories of use Within the visitation data reporting system established under paragraph (1), the Secretaries shall— (A) establish multiple categories of different recreation activities that are reported consistently across agencies; and (B) provide an estimate of the number of visitors for each applicable category established under subparagraph (A) for each unit of Federal recreational lands and waters. (b) Real-Time Data Pilot program (1) In general Not later than 2 years after the date of enactment of this Act, using existing funds available to the Secretaries, the Secretaries shall carry out a pilot program, to be known as the Real-time Data Pilot Program (referred to in this section as the Pilot Program ), to make available to the public, for each unit of Federal recreational lands and waters selected for participation in the Pilot Program under paragraph (2)— (A) real-time or predictive data on visitation (including data and resources publicly available from existing nongovernmental platform) at— (i) the unit of Federal recreational lands and waters; (ii) to the extent practicable, areas within the unit of Federal recreational lands and waters; and (iii) to the extent practicable, recreation sites managed by any other Federal agency, a State agency, or a local agency that are located near the unit of Federal recreational lands and waters; and (B) through multiple media platforms, information about lesser-known recreation sites located near the unit of Federal recreational lands and waters (including recreation sites managed by any other Federal agency, a State agency, or a local agency), in an effort to encourage visitation among recreational sites. (2) Locations (A) Initial number of units On establishment of the Pilot Program, the Secretaries shall select for participation in the Pilot Program— (i) 15 units of Federal recreational lands and waters managed by the Secretary