In order to protect the safety and health of EU citizens and preserve the integrity of the internal market, controls are carried out on food entering the EU market to ensure they meet the requirements of EU food law. The controls carried out are dependent on the food type and can vary from a documentary check to an identity or a physical check or any combination of these checks. Some foods are considered to pose a higher risk to public health, animal health or to the environment in terms of diseases, pests or contaminants, and additional requirements are in place for these foods to control those risks. These additional requirements can include prenotification of arrival at the point of entry, specific accompanying documents and full physical checks. In most cases these foods may only enter the EU market through a specific entry point.