Community Development Block Grant Improvement Act of 2009 - Amends the Housing and Community Development Act of 1974 to revise requirements for activities eligible for community development block grant (CDBG) assistance.
Increases from 15% to 50% the limitation on the amount of CDBG assistance that may be used to provide public services (e.g., those concerned with employment, crime prevention, child care, health, drug abuse, education, energy conservation, welfare or recreation needs).
Repeals certain conditions on the use of such assistance by a local government.