Consumer's demand for "halal" (حلال ḥalāl - Arabic: "permissible") food in Europe has been increased due to the growing population of Muslim citizens and Islamic religion immigrants in the European Union. The rules of "halal" based on Islamic law (Sharia) and allow or not consumption food products to Muslim consumers. Within the European Union large quantity of meat species (sheep, beef, and poultry meat) it is produced and may be consumed by Muslim people according to religious rules of Islam. European Union establishes the legislative framework of the welfare standards of animals, slaughter, and production of meat products with a view to animal welfare as expected by European citizens. However, derogations allowed in the case of religious slaughter process which takes place in approved by the competent authorities, slaughterhouses. In Greece, national measures have recently been issued on the requirements for religious slaughter. FAO/WHO Codex Alimentarius Committee (CAC) has issued guidelines on the labeling of the term “halal” food while the European Union does not put restrictions on the labeling of halal meat because this is not a subject to the law rules and as a religious issue, it is not a responsibility under setting of European Commission.