matching If a qualified entity provides an operator an amount equal to or greater than 2 times the amount of a grant provided in a fiscal year to the operator under subsection (d) (for the explicit purpose of matching such grant), the Secretary may issue a supplemental grant to the operator that is equal to 50 percent of such grant in the following fiscal year. (4) Supplemental grant limitations (A) Match timing The Secretary may issue a supplemental grant under paragraph (2) or (3) only if an amount provided by a qualified entity is provided to the operator in the same fiscal year as the grant issued under subsection (d). (B) Non-duplication of matching grants If the Secretary issues a supplemental grant to the operator of a launch site under paragraph (3), the Secretary may not issue a supplemental grant under paragraph (2) to the same operator in the same fiscal year. (5) Non-application of grant ceiling The limitation on a grant amount under subsection (d)(2) shall not apply to supplemental grants issued under this subsection. (f) Funding (1) Pilot program grant funds The grants issued under this section shall be issued from funds made available out of amounts available under section 106(k) of title 49, United States Code. (2) Maximum annual limit on pilot program (A) In general The total amount of all grants issued under this section shall not exceed $20,000,000 in any fiscal year. (B) Grant reduction In complying with subparagraph (A), the Secretary— (i) may proportionally reduce the amount of, or decline to issue, a supplemental grant under subsection (e)