Purpose. Worksite health promotion (WHP) programs can reduce the occurrence of cardiovascular disease risk factors. State law can encourage employers and employer-provided insurance companies to offer comprehensive WHP programs. This research examines state law authorizing WHP programs. Design. Quantitative content analysis. Setting. Worksites or workplaces. Subjects. United States (and the District of Columbia). Intervention. State law in effect in 2013 authorizing WHP programs. Measures. Frequency and distribution of states with WHP laws. Analysis. To determine the content of the laws for analysis and coding, we identified 18 policy elements, 12 from the Centers for Disease Control and Prevention's Worksite Health ScoreCard (HSC) and 6 additional supportive WHP strategies. We used these strategies as key words to search for laws authorizing WHP programs or select WHP elements. We calculated the number and type of WHP elements for each state with WHP laws and selected two case examples from states with comprehensive WHP laws. Results. Twenty-four states authorized onsite WHP programs, 29 authorized WHP through employer-provided insurance plans, and 18 authorized both. Seven states had a comprehensive WHP strategy, addressing 8 or more of 12 HSC elements. The most common HSC elements were weight management, tobacco cessation, and physical activity. Conclusion. Most states had laws encouraging the adoption of WHP programs. Massachusetts and Maine are implementing comprehensive WHP laws but studies evaluating their health impact are needed.