The US Customs and Border Protection (CBP) agency is responsible for overseeing duty-free stores in the US, including the rules and regulations that govern their sales. Duty-free stores are usually located in international airports and other ports of entry and offer tax-free shopping to travellers who are leaving the country.
This report examines the federal and general state requirements (though it does not analyse specific individual state requirements) that e-cigarette manufacturers need to comply with before selling their products in duty-free stores in the US.