diff --git a/navalplanner-webapp/src/main/java/org/navalplanner/web/scenarios/CurrentUserScenarioAwareManager.java b/navalplanner-webapp/src/main/java/org/navalplanner/web/scenarios/CurrentUserScenarioAwareManager.java
new file mode 100644
index 000000000..800594ea8
--- /dev/null
+++ b/navalplanner-webapp/src/main/java/org/navalplanner/web/scenarios/CurrentUserScenarioAwareManager.java
@@ -0,0 +1,52 @@
+/*
+ * This file is part of NavalPlan
+ *
+ * Copyright (C) 2009 Fundación para o Fomento da Calidade Industrial e
+ *                    Desenvolvemento Tecnolóxico de Galicia
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.navalplanner.web.scenarios;
+
+import org.navalplanner.business.scenarios.IScenarioManager;
+import org.navalplanner.business.scenarios.bootstrap.IScenariosBootstrap;
+import org.navalplanner.business.scenarios.entities.Scenario;
+import org.navalplanner.web.users.services.CustomUser;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.security.Authentication;
+import org.springframework.security.context.SecurityContextHolder;
+
+/**
+ * @author Óscar González Fernández <ogonzalez@igalia.com>
+ *
+ */
+public class CurrentUserScenarioAwareManager implements IScenarioManager {
+
+    @Autowired
+    private IScenariosBootstrap scenariosBootstrap;
+
+    @Override
+    public Scenario getCurrent() {
+        Authentication authentication = SecurityContextHolder.getContext()
+                .getAuthentication();
+        return authentication == null ? scenariosBootstrap.getMain()
+                : getScenarioFrom(authentication);
+    }
+
+    private Scenario getScenarioFrom(Authentication authentication) {
+        CustomUser user = (CustomUser) authentication.getPrincipal();
+        return user.getScenario();
+    }
+
+}
diff --git a/navalplanner-webapp/src/main/resources/navalplanner-webapp-spring-config.xml b/navalplanner-webapp/src/main/resources/navalplanner-webapp-spring-config.xml
index ad9656f0d..d65659acf 100644
--- a/navalplanner-webapp/src/main/resources/navalplanner-webapp-spring-config.xml
+++ b/navalplanner-webapp/src/main/resources/navalplanner-webapp-spring-config.xml
@@ -52,6 +52,10 @@
     <bean id="resourcesMultipleFiltersFinder" class="org.navalplanner.web.common.components.finders.ResourcesMultipleFiltersFinder" scope="singleton"
         init-method="init" />
 
+    <bean id="scenarioManager"
+        class="org.navalplanner.web.scenarios.CurrentUserScenarioAwareManager"
+        scope="singleton"/>
+
     <context:component-scan base-package="org.navalplanner"/>
 
     <!-- CXF -->
diff --git a/navalplanner-webapp/src/test/java/org/navalplanner/web/scenarios/CurrentUserScenarioAwareManagerTest.java b/navalplanner-webapp/src/test/java/org/navalplanner/web/scenarios/CurrentUserScenarioAwareManagerTest.java
new file mode 100644
index 000000000..0514876b7
--- /dev/null
+++ b/navalplanner-webapp/src/test/java/org/navalplanner/web/scenarios/CurrentUserScenarioAwareManagerTest.java
@@ -0,0 +1,112 @@
+/*
+ * This file is part of NavalPlan
+ *
+ * Copyright (C) 2009 Fundación para o Fomento da Calidade Industrial e
+ *                    Desenvolvemento Tecnolóxico de Galicia
+ *
+ * This program is free software: you can redistribute it and/or modify
+ * it under the terms of the GNU Affero General Public License as published by
+ * the Free Software Foundation, either version 3 of the License, or
+ * (at your option) any later version.
+ *
+ * This program is distributed in the hope that it will be useful,
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+ * GNU Affero General Public License for more details.
+ *
+ * You should have received a copy of the GNU Affero General Public License
+ * along with this program.  If not, see <http://www.gnu.org/licenses/>.
+ */
+package org.navalplanner.web.scenarios;
+
+import static org.easymock.EasyMock.expect;
+import static org.easymock.classextension.EasyMock.createNiceMock;
+import static org.easymock.classextension.EasyMock.replay;
+import static org.junit.Assert.assertEquals;
+import static org.navalplanner.business.BusinessGlobalNames.BUSINESS_SPRING_CONFIG_FILE;
+import static org.navalplanner.web.WebappGlobalNames.WEBAPP_SPRING_CONFIG_FILE;
+import static org.navalplanner.web.WebappGlobalNames.WEBAPP_SPRING_SECURITY_CONFIG_FILE;
+import static org.navalplanner.web.test.WebappGlobalNames.WEBAPP_SPRING_CONFIG_TEST_FILE;
+
+import org.junit.Before;
+import org.junit.Test;
+import org.junit.runner.RunWith;
+import org.navalplanner.business.scenarios.IScenarioManager;
+import org.navalplanner.business.scenarios.bootstrap.IScenariosBootstrap;
+import org.navalplanner.business.scenarios.bootstrap.PredefinedScenarios;
+import org.navalplanner.business.scenarios.entities.Scenario;
+import org.navalplanner.web.users.services.CustomUser;
+import org.springframework.beans.factory.annotation.Autowired;
+import org.springframework.security.Authentication;
+import org.springframework.security.context.SecurityContext;
+import org.springframework.security.context.SecurityContextHolder;
+import org.springframework.test.context.ContextConfiguration;
+import org.springframework.test.context.junit4.SpringJUnit4ClassRunner;
+import org.springframework.transaction.annotation.Transactional;
+
+/**
+ * @author Óscar González Fernández <ogonzalez@igalia.com>
+ */
+@RunWith(SpringJUnit4ClassRunner.class)
+@ContextConfiguration(locations = { BUSINESS_SPRING_CONFIG_FILE,
+        WEBAPP_SPRING_CONFIG_FILE, WEBAPP_SPRING_CONFIG_TEST_FILE,
+        WEBAPP_SPRING_SECURITY_CONFIG_FILE })
+@Transactional
+public class CurrentUserScenarioAwareManagerTest {
+
+    @Autowired
+    private IScenariosBootstrap scenariosBootstrap;
+
+    @Autowired
+    private IScenarioManager scenarioManager;
+
+    @Before
+    public void loadRequiredData() {
+        scenariosBootstrap.loadRequiredData();
+    }
+
+    @Test
+    public void ifNoUserAuthenticatedMainScenarioIsReturned() {
+        Scenario current = scenarioManager.getCurrent();
+        assertEquals(PredefinedScenarios.MASTER.getName(), current.getName());
+        assertEquals(scenariosBootstrap.getMain(), current);
+    }
+
+    @Test
+    public void retrievesTheScenarioAssociatedWithTheAuthentication() {
+        Scenario customScenario = mockScenario();
+        givenUserAuthenticatedWith(customScenario);
+        Scenario current = scenarioManager.getCurrent();
+        assertEquals(customScenario, current);
+    }
+
+    private Scenario mockScenario() {
+        Scenario result = createNiceMock(Scenario.class);
+        replay(result);
+        return result;
+    }
+
+    private Scenario givenUserAuthenticatedWith(Scenario customScenario) {
+        SecurityContext context = SecurityContextHolder.getContext();
+        CustomUser user = createUserWithScenario(customScenario);
+        Authentication authentication = stubAuthenticationWithPrincipal(user);
+        context.setAuthentication(authentication);
+        return customScenario;
+    }
+
+
+    private CustomUser createUserWithScenario(Scenario customScenario) {
+        CustomUser result = createNiceMock(CustomUser.class);
+        expect(result.getScenario()).andReturn(customScenario).anyTimes();
+        replay(result);
+        return result;
+    }
+
+    private Authentication stubAuthenticationWithPrincipal(CustomUser customUser) {
+        Authentication result = createNiceMock(Authentication.class);
+        expect(result.getPrincipal()).andReturn(customUser).anyTimes();
+        replay(result);
+        return result;
+    }
+
+}