While CBD is legal in many places all over the world, travelling with CBD isn't always straightforward. The surest way to find out if CBD oil is legal in the country you are travelling to is by speaking to a customs agent or an embassy official. You may also be able to receive assistance from airline or airport officials. In most cases, CBD oil should be safe to carry within Europe as long as it contains less than 0.2% THC, in the United States it must contain less than 0.3% THC. If you are travelling with CBD it might be useful to bring proof that your CBD is hemp-derived with lab analysis showing the THC content in case of being challenged, whilst also making sure you understand local regulations and adhere to rules regarding travelling with liquids.