S.1557 - Federal Government - A bill to amend part B of title IV of the Elementary and Secondary Education Act of 1965 to improve 21st Century Community Learning Centers.

21st Century Community Learning Centers Act of 2007 - Amends the 21st Century Community Learning Centers program under title IV of the Elementary and Secondary Education Act of 1965 to include the provision of service learning and nutrition education and, in place of recreation programs, physical fitness and wellness programs, among the activities for which community learning centers will receive funding.

Raises from 3% to 5% the percentage of program funds a state may use for monitoring, evaluating, and providing training and technical assistance to community learning center grantees.

Makes community learning center grants renewable for a period of between three and five years.