A comprehensive review of country-level laws that regulate e-cigarettes, other electronic nicotine delivery systems, heated tobacco products and nicotine pouches. More than 100 countries have national laws regulating at least one of these products, including laws related to the sale (including minimum age), advertising, promotion, sponsorship, packaging (child safety packaging and health warning labeling), product regulation (nicotine volume/concentration, safety/hygiene, ingredients/flavors), reporting/notification, taxation, use (vape-free) or classification of e-cigarettes.