The predictive validity of state legislators' behavioral intentions in relation to their votes on tobacco control legislation was assessed by using the theory of planned behavior (I. Ajzen, 1991). Intentions to vote for cigarette tax increases were measured through interviews in the summer of 1994. A bill containing cigarette tax increases was considered about 8 months later. Votes were compared with intentions and were found to be consistent for 78% of these legislators (N = 120). Multiple logistic regression analyses showed a strong independent relationship between intentions and voting and a similar effect of political party; results suggested but did not confirm that votes were predicted by interactions between intentions and perceived control. Legislator surveys that use this conceptual model can provide results relevant to understanding tobacco policy development.