MMWR Morb Mortal Wkly Rep

Raising the minimum legal sales age (MLSA) for tobacco products to 21 years (T21) is a strategy to help prevent and delay the initiation of tobacco product use (1). On December 20, 2019, Congress raised the federal MLSA for tobacco products from 18 to 21 years. Before enactment of the federal T21 law, localities, states, and territories were increasingly adopting their own T21 laws as part of a comprehensive approach to prevent youth initiation of tobacco products, particularly in response to recent increases in use of e-cigarettes among youths (2). Nearly all tobacco product use begins during adolescence, and minors have cited social sources such as older peers and siblings as a common source of access to tobacco products (1,3). State and territorial T21 laws vary widely and can include provisions that might not benefit the public's health, including penalties to youths for purchase, use, or possession of tobacco products; exemptions for military populations; phase-in periods; and preemption of local laws. To understand the landscape of U.S. state and territorial T21 laws before enactment of the federal law, CDC assessed state and territorial laws prohibiting sales of all tobacco products to persons aged