KnowraCustoms unionLinked fromLinked fromThe 12 pages that link to Customs union, each with the reason it gives.All 12Broader topic 4Related 3Narrower topic 3Compared with 2European Free Trade AssociationCompared with: Unlike a customs union, EFTA members set their external trade policies separately.Central European Free Trade AgreementCompared with: CEFTA does not establish a common external tariff among its members.