Objectives:
This cross-sectional survey research aimed to study the situation and factors related to the violations of the Tobacco Product Control Act B.E. 2560 among tobacco retailers.

Methods:
The samples were 1,039 tobacco retailers taken through a multi stage sampling from 12 provinces in 4 regions. The data was collected by using self – administered questionnaires and analyzed by using Chi square statistics and logistic regression.

Results:
The results showed that 63.5% of tobacco retailers had the low knowledge about the Act., 51.9% had the low perceived law enforcement, and 51.6% had the negative attitude towards compliance with the law. Moreover, in terms of violations of the Tobacco Control Act B.E.2560 in the past 30 days: 39.4% open display of cigarette at the point of sale, 45.6% selling cigarettes in sticks, and 55.6% selling cigarettes to minors. The factors related to violations of the Tobacco Control Act B.E. 2560 among tobacco retailers at 95% of confidence level such as having a negative attitude towards compliance with the law (ORAdj=3.931), no license to sell cigarettes (ORAdj=2.576), to be a grocery store type (ORAdj=2.520), and low perceived of law enforcement (ORAdj=1.504).

Conclusion(s):
These findings suggested that government agencies involved should strictly enforce the law in particular the ban on selling cigarettes in sticks, open display of cigarette at the point of sale, and selling cigarettes to minors, together with enhancing measures to change retailer attitude and their perception towards compliance with the laws.