The ASSOCIATION INTERNATIONALE DES EXPERTS EN PHILATELIE is a worldwide group of experts for different specialist areas in philately. A.I.E.P. experts issue A.I.E.P. certificates of authenticity based on A.I.E.P. statutes. A list giving named A.I.E.P. experts for specific areas, along with A.I.E.P. expertisation status, addresses, terms and conditions of business can be found on the internet under www.aiep.net.