Americans for Nonsmokers' Rights
A comprehensive collection of state and local legislation in the US.
http://www.no-smoke.org/goingsmokefree.php?id=519
Campaign for Tobacco-Free Kids
Provides information about tobacco control legislation by country and by policy.
http://www.tobaccocontrollaws.org/
Global Tobacco Control
Provides information about country-level laws that regulate e-cigarettes or other electronic nicotine delivery systems.
https://globaltobaccocontrol.org/e-cigarette_policyscan
Public Health Law Center
Provides information about State, Federal, Corporate and Tribal regulatory action for e-cigarettes in the US.
https://www.publichealthlawcenter.org/resources/states-and-tribes-stepping-protect-communities-dangers-e-cigarettes-actions-and-options