Child Tobacco Use Prevention Act of 2000 - Title I: FDA Jurisdiction Over Tobacco Products - Amends the Federal Food, Drug, and Cosmetic Act (FDCA) to give the Food and Drug Administration (FDA) jurisdiction over tobacco products as drugs or devices. Declares lawful a specified Federal regulation regarding tobacco. Deems, for tobacco, an action providing appropriate protection of public health to provide a reasonable assurance of safety and effectiveness. Mandates additional restrictions on marketing, advertising, and access. Provides for model state tobacco control programs. Repeals the Federal Cigarette Labeling and Advertising Act and the Comprehensive Smokeless Tobacco Health Education Act of 1986.

Title II: Performance Objectives to Reduce Child Tobacco Use - Sets goals for an existing manufacturer to reduce its child tobacco use level and penalties for failure to reach the goals.

Title III: Smoke-Free Environments - Requires the responsible entity for each public facility (a building where activities substantially affecting interstate commerce occur, including those owned or leased to a Federal, State, or local governmental entity) to adopt and implement a smoke-free environment policy meeting specified requirements.

Title IV: Tobacco Prevention Initiatives - Requires making available funds for a national public awareness campaign discouraging tobacco use and for implementation and enforcement of: (1) FDCA provisions regarding tobacco; and (2) the requirements of title III of this Act.