16 U.S. Code § 669h–1 - Firearm and bow hunter education and safety program grants
(a) In general
Of the revenues covered into the fund, $7,500,000 for each of fiscal years 2001 and 2002, and $8,000,000 for fiscal year 2003 and each fiscal year thereafter, shall be apportioned among the States in the manner specified in section 669c (c)  of this title by the Secretary of the Interior and used to make grants to the States to be used for—
(A) in the case of a State that has not used all of the funds apportioned to the State under section 669c (c)  of this title for the fiscal year in the manner described in section 669g (b) of this title—
(i) the enhancement of hunter education programs, hunter and sporting firearm safety programs, and hunter development programs;
(ii) the enhancement of interstate coordination and development of hunter education and shooting range programs;
(B) in the case of a State that has used all of the funds apportioned to the State under section 669c (c)  of this title for the fiscal year in the manner described in section 669g (b) of this title, any use authorized by this chapter (including hunter safety programs and the construction, operation, and maintenance of public target ranges).
(b) Cost sharing
The Federal share of the cost of any activity carried out with a grant under this section shall not exceed 75 percent of the total cost of the activity.
(c) Period of availability; reapportionment
(1) Period of availability
Amounts made available and apportioned for grants under this section shall remain available only for the fiscal year for which the amounts are apportioned.
At the end of the period of availability under paragraph (1), the Secretary of the Interior shall apportion amounts made available that have not been used to make grants under this section among the States described in subsection (a)(1)(B) of this section for use by those States in accordance with this chapter.
 Probably means section 669c(c) relating to apportionment of certain taxes.