Combating Autism Act of 2005

Combating Autism Act of 2005 - Amends the Public Health Service Act to require the Secretary of Health and Human Services to establish: (1) a program to provide information and education on autism and its risk factors to health professionals and the general public; and (2) the Autism Coordinating Committee to coordinate autism related activities within the Department of Health and Human Services (HHS).

Requires the Secretary, acting through the Administrator of the Health Resources and Services Administration (HRSA), to award grants or cooperative agreements to develop statewide autism screening, diagnosis, and intervention programs and systems.

Requires the Secretary, acting through the Director of the Centers for Disease Control and Prevention (CDC), to award grants or cooperative agreements to provide technical assistance to state agencies to conduct applied autism research.