The object of this paper is to provide evidence concerning the extent to which consumers of liquor exhibit a demand for precommitment devices. One of the most frequently mentioned strategies for exercising self-control is to limit the availability of a problematic good by not maintaining an easily accessed supply. In a policy regime with shorter sales hours (either for on- premise or off-premise consumption), this strategy should be more effective; hence, if the strate- gy is widely used, alcohol consumption should be lower. In contrast, without time inconsistency, one would expect liquor consumption to decline with shorter on-premise sales hours (because of complementarities between liquor and other on-premise activities such as dining and socializ- ing), but not necessarily with shorter off-premise sales hours (because liquor is storable at low cost and the experience is repeated with high frequency). We examine a collection of natural ex- periments in which states expanded allowable Sunday sales hours for liquor. Our results indicate that consumers increase their liquor consumption in response to extended Sunday on-premise sales hours, but not in response to extended off-premise sales hours. Thus we find no indication that precommitment strategies affecting availability play meaningful roles in aggregate liquor consumption. Instead, the observed pattern coincides with predictions for time-consistent con- sumers who have rational expectations and low costs of carrying inventories.