In the United States, the Food and Drug Administration (FDA) has issued regulations that apply to all e-cigarette products, including those sold online. These regulations require manufacturers to register with the FDA, provide a list of ingredients, and report any adverse events associated with their products.
In the European Union, the Tobacco Products Directive (TPD) sets regulations for the sale and manufacture of vaping products. The TPD requires all vaping products to be registered and pre-market approval from the European Commission, and it limits the amount of nicotine in e-liquid to 20mg/ml.
In the United Kingdom, the Medicines and Healthcare products Regulatory Agency (MHRA) is responsible for regulating vaping products. The MHRA requires manufacturers to register their products and provide a list of ingredients, and it also sets limits on the strength of nicotine in e-liquid.
In Canada, the federal government has set regulations for the sale and manufacture of vaping products. These regulations require manufacturers to register their products and provide a list of ingredients, and they also set limits on the strength of nicotine in e-liquid.
In Australia, the Therapeutic Goods Administration (TGA) is responsible for regulating vaping products. The TGA requires manufacturers to register their products and provide a list of ingredients, and it also sets limits on the strength of nicotine in e-liquid.
In other countries, regulations may vary. It is important to check with your local government to determine the specific regulations that apply to vaping products in your area.