diff --git a/CHANGELOG.md b/CHANGELOG.md
index d0ed5f9..6577437 100644
--- a/CHANGELOG.md
+++ b/CHANGELOG.md
@@ -11,6 +11,8 @@ This new release includes :
 - Countries' participation to _European Union_ (#44).
 - Countries' participation to _Single Euro Payments Area_, also known as SEPA (#31).
 - Countries' participation to _SEPA COM Pacifique_ (#46).
+- Countries' participation to _European Economic Area_ (#45).
+- Countries' participation to _European Free Trade Association_ (#45).
 
 ### Changed
 - Adjust BBAN structure for Sao Tome and Principe (#36).
diff --git a/README.md b/README.md
index f2e4356..7df1cca 100644
--- a/README.md
+++ b/README.md
@@ -16,9 +16,11 @@ jbanking is supporting the following features :
   numeric code and status - e.g. independent or dependent - according to the [International
   Organization for Standardization](https://www.iso.org)).
 * Countries' or territories' participation to economic agreements :
+  * [European Economic Area (EEA)](https://wikipedia.org/wiki/European_Economic_Area)
+  * [European Free Trade Association (EFTA)](https://wikipedia.org/wiki/European_Free_Trade_Association)
   * [European Union (EU)](https://en.wikipedia.org/wiki/European_Union)
-  * [Single Euro Payments Area (SEPA)](https://wikipedia.org/wiki/Single_Euro_Payments_Area)
   * [SEPA COM Pacifique](https://www.cfonb.org/Default.aspx?lid=1&rid=122&rvid=239)
+  * [Single Euro Payments Area (SEPA)](https://wikipedia.org/wiki/Single_Euro_Payments_Area)
 * [ISO 4217 currencies](http://wikipedia.org/wiki/ISO_4217) (with alphabetic code, numeric code,
   minor unit and countries using it).
 * [ISO 9362:2009 BIC](http://wikipedia.org/wiki/Bank_Identifier_Code) handling and validation.
diff --git a/src/main/java/fr/marcwrobel/jbanking/Agreement.java b/src/main/java/fr/marcwrobel/jbanking/Agreement.java
index fb0d684..d69d447 100644
--- a/src/main/java/fr/marcwrobel/jbanking/Agreement.java
+++ b/src/main/java/fr/marcwrobel/jbanking/Agreement.java
@@ -68,6 +68,71 @@
  */
 public enum Agreement {
 
+  /**
+   * The European Economic Area (EEA) was established via the Agreement on the European Economic
+   * Area, an international agreement which enables the extension of the European Union's single
+   * market to member states of the European Free Trade Association.
+   *
+   * <p>This enum was last updated on 2020-08-03 based on information given on <a
+   * href="https://wikipedia.org/wiki/European_Economic_Area">Wikipedia - European Economic
+   * Area</a>.
+   *
+   * @see <a
+   *     href="https://ec.europa.eu/eurostat/statistics-explained/index.php/Glossary:European_Economic_Area_(EEA)">europa.eu
+   *     - European Economic Area (EEA)</a>
+   * @see <a href="https://wikipedia.org/wiki/European_Economic_Area">Wikipedia - European Economic
+   *     Area</a>
+   * @since 2.1.0
+   */
+  EUROPEAN_ECONOMIC_AREA(
+      AUSTRIA,
+      BELGIUM,
+      BULGARIA,
+      CROATIA,
+      CYPRUS,
+      CZECH_REPUBLIC,
+      DENMARK,
+      ESTONIA,
+      FINLAND,
+      FRANCE,
+      GERMANY,
+      GREECE,
+      HUNGARY,
+      ICELAND,
+      IRELAND,
+      ITALY,
+      LATVIA,
+      LIECHTENSTEIN,
+      LITHUANIA,
+      LUXEMBOURG,
+      MALTA,
+      NETHERLANDS,
+      NORWAY,
+      POLAND,
+      PORTUGAL,
+      ROMANIA,
+      SLOVAKIA,
+      SLOVENIA,
+      SPAIN,
+      SWEDEN,
+      SWITZERLAND),
+
+  /**
+   * The European Free Trade Association (EFTA) is a regional trade organization and free trade
+   * area. The organization operates in parallel with the European Union (EU), and all member states
+   * participate in the European Single Market and are part of the Schengen Area. They are not,
+   * however, party to the European Union Customs Union.
+   *
+   * <p>This enum was last updated on 2020-08-03 based on information given on : <a
+   * href="https://www.efta.int/about-efta/the-efta-states">efta.int - The EFTA States</a>.
+   *
+   * @see <a href="https://www.efta.int/about-efta/the-efta-states">efta.int - The EFTA States</a>
+   * @see <a href="https://wikipedia.org/wiki/European_Free_Trade_Association">Wikipedia - European
+   *     Free Trade Association</a>
+   * @since 2.1.0
+   */
+  EUROPEAN_FREE_TRADE_ASSOCIATION(ICELAND, LIECHTENSTEIN, NORWAY, SWITZERLAND),
+
   /**
    * The European Union (EU) is a political and economic union of states that are located primarily
    * in Europe. The EU has developed an internal single market through a standardised system of laws
@@ -78,8 +143,8 @@ public enum Agreement {
    * href="https://wikipedia.org/wiki/Special_member_state_territories_and_the_European_Union">
    * Special member state territories</a> are not listed in this enum.
    *
-   * <p>This enum was last updated on 2020-07-31 based on information given in the europa.eu article
-   * <a href="https://europa.eu/european-union/about-eu/countries_en">Countries</a>.
+   * <p>This enum was last updated on 2020-07-31 based on information given on <a
+   * href="https://europa.eu/european-union/about-eu/countries_en">europa.eu - Countries</a>.
    *
    * @see <a href="https://europa.eu/european-union/about-eu/countries_en">europa.eu - Countries</a>
    * @see <a href="https://wikipedia.org/wiki/European_Union">Wikipedia - European Union</a>
diff --git a/src/test/java/fr/marcwrobel/jbanking/AgreementTest.java b/src/test/java/fr/marcwrobel/jbanking/AgreementTest.java
index b7d518b..fa30795 100644
--- a/src/test/java/fr/marcwrobel/jbanking/AgreementTest.java
+++ b/src/test/java/fr/marcwrobel/jbanking/AgreementTest.java
@@ -1,5 +1,10 @@
 package fr.marcwrobel.jbanking;
 
+import static fr.marcwrobel.jbanking.Agreement.EUROPEAN_ECONOMIC_AREA;
+import static fr.marcwrobel.jbanking.Agreement.EUROPEAN_FREE_TRADE_ASSOCIATION;
+import static fr.marcwrobel.jbanking.Agreement.EUROPEAN_UNION;
+import static fr.marcwrobel.jbanking.Agreement.SEPA_COM_PACIFIQUE;
+import static fr.marcwrobel.jbanking.Agreement.SINGLE_EURO_PAYMENTS_AREA;
 import static org.junit.jupiter.api.Assertions.assertEquals;
 import static org.junit.jupiter.api.Assertions.assertFalse;
 import static org.junit.jupiter.api.Assertions.assertTrue;
@@ -24,15 +29,29 @@ void ensureConsistency() {
 
   @Test
   void sepaComPacifiqueParticipantsAreNotSingleEuroPaymentAreaParticipants() {
-    for (IsoCountry participant : Agreement.SEPA_COM_PACIFIQUE.getParticipants()) {
-      assertFalse(participant.isParticipatingTo(Agreement.SINGLE_EURO_PAYMENTS_AREA));
+    for (IsoCountry participant : SEPA_COM_PACIFIQUE.getParticipants()) {
+      assertFalse(participant.isParticipatingTo(SINGLE_EURO_PAYMENTS_AREA), participant::name);
     }
   }
 
   @Test
   void europeanUnionParticipantsAreAlsoSingleEuroPaymentAreaParticipants() {
-    for (IsoCountry participant : Agreement.EUROPEAN_UNION.getParticipants()) {
-      assertTrue(participant.isParticipatingTo(Agreement.SINGLE_EURO_PAYMENTS_AREA));
+    for (IsoCountry participant : EUROPEAN_UNION.getParticipants()) {
+      assertTrue(participant.isParticipatingTo(SINGLE_EURO_PAYMENTS_AREA), participant::name);
+    }
+  }
+
+  @Test
+  void europeanUnionParticipantsAreEuropeanEconomicAreaParticipants() {
+    for (IsoCountry participant : EUROPEAN_UNION.getParticipants()) {
+      assertTrue(participant.isParticipatingTo(EUROPEAN_ECONOMIC_AREA), participant::name);
+    }
+  }
+
+  @Test
+  void europeanFreeTradeAssociationParticipantsAreEuropeanEconomicAreaParticipants() {
+    for (IsoCountry participant : EUROPEAN_FREE_TRADE_ASSOCIATION.getParticipants()) {
+      assertTrue(participant.isParticipatingTo(EUROPEAN_ECONOMIC_AREA), participant::name);
     }
   }
 }