Starting January 1, 2016 wherever smoking is prohibited by state law, e-cigarettes (or electronic smoking devices) will also be prohibited. This pertains to enclosed or partially enclosed places open to the public or places of employment.
For new law language and other details about this law, see this link.
See the Hawaii State Department of Health’s website for more information.
To order free temporary signage, decals, and window clings, please contact Jill Tamashiro at the Tobacco Prevention and Education Program at the Hawaii State Department of Health at firstname.lastname@example.org or (808) 586-1431