The term eligible entity means a limited liability company, limited partnership, corporation, business trust, nonprofit entity, or such other form of entity as the head of a covered agency may designate. (j) Reports by Government Accountability Office The Comptroller General of the United States shall submit to Congress two reports on the effectiveness of the public-private agreement pilot program under this section. The first report shall be submitted not later than 5 years after the date of the enactment of this section, and the second report shall be submitted not later than 10 years after such date of enactment. Each report shall include specific recommendations on how best to use public-private agreements in all Federal agencies to improve Federal real property management.