this section, to remain available for obligation until the date that is 5 years after the date of enactment of this section. (2) Reservation of funds (A) In general Of the funds made available under paragraph (1), the Secretary shall reserve not less than 20 percent to award grants to eligible applicants for the development of social determinants accelerator plans under subsection (g) intended to serve rural populations. (B) Exception In the case of a fiscal year for which the Secretary determines that there are not sufficient eligible applicants to award up to 25 grants under subsection (g) that are intended to serve rural populations and the Secretary cannot satisfy the 20-percent requirement, the Secretary may reserve an amount that is less than 20 percent of amounts made available under paragraph (1) to award grants for such purpose. (3) Rule of construction Nothing in this section shall prevent Federal agencies represented on the Council from contributing additional funding from other sources to support activities to improve the effectiveness of the Council. .